Muslims’ opinion of Christians; is the jihad that they spoke of in the past still ongoing?
Question

                What is the Muslims oppinion of Christianity and why is there so much quarrel? Is it because of the crusades and that the jihad (sorry if spelt wrongly) that was spoken then still exists? 3.) Cant both culture accept as God and Allah being the same Creator? Because both are described in a very simular way and i am wondering if both accept God and Allah being the same Creator that many problems would be solved? Plz answer as soon as possible because it would be useful to use the information i get in my project on Islam? .
Praise be to Allah.
    Firstly: 

    The Muslims regard the Christians as being of two types: 

    1 –Those who believed in Jesus (peace be upon him) at the 
    time of Jesus or after him, before the coming of Muhammad  (peace and 
    blessings of Allaah be upon him). They are righteous believers who believed 
    in the Oneness of God (Tawheed); they believed that Jesus was a great 
    Messenger who was sent by God, and they believed in other Messengers such as 
    Abraham and Moses. 

    As for those who believed in Jesus (peace be upon him) then 
    believed in Muhammad  (peace and blessings of Allaah be upon him), they 
    are of a high status, and will have a double reward, as our Prophet  
    (peace and blessings of Allaah be upon him) said. 

    2 – Those who deviated from Tawheed (pure monotheism) and 
    believed that Jesus was God or the son of God, or they devoted some forms of 
    worship to him such as prayer and supplication. This is going against the 
    teachings of Jesus and other Messengers, and following the distortions that 
    the priests and monks introduced into the true religion that was brought by 
    Jesus from God. 

    Similarly, those who heard the Message of Muhammad  
    (peace and blessings of Allaah be upon him) but did not believe in it or 
    follow him, are going against the way of the Muslims and are going against 
    the teachings of Jesus (peace be upon him), because he foretold the coming 
    of his brother Muhammad  (peace and blessings of Allaah be upon him). 

    This opinion about the Christians is well established and 
    does not stem from the Crusades or the oppression of the colonialists and 
    their aggression against Muslim lands. If anyone rejects the message of 
    Jesus (peace be upon him) or the message of Moses (peace be upon him) or the 
    message of Muhammad  (peace and blessings of Allaah be upon him), he is 
    a kaafir (disbeliever). If anyone denies that this Qur’aan was revealed from 
    God, or mocks it, he is a kaafir, because the Qur'aan was revealed from 
    Allaah. 

    As for jihad, it will remain in effect until the Day of 
    Resurrection. Its aim is to spread the call of truth to all of mankind and 
    free man from the oppressive forces that conceal the light from him and 
    prevent him from thinking about the truth, and subject him to rules that go 
    against the rulings of God. The aim of jihad is not to force anyone to enter 
    Islam, because Allaah says (interpretation of the meaning): 

    “There is no compulsion in religion”

    [al-Baqarah 2:256]

    Secondly: 

    What you mention about the Lord and God and the Creator 
    indicates that your fitrah (basic human nature) and your reasoning are 
    sound. This is what the Muslims believe. The Lord is God (Allaah) and He is 
    the Creator; there is no creator but Him and no lord but Him, and no one 
    deserves to be worshipped except Him. The Creator, the Provider, the 
    Controller, is Allaah, besides Whom there is no other god, and it is not 
    permissible for us to worship anyone but Him. This God cannot be like a 
    human being, having a son or a wife; exalted be Allaah above that. 

    Moreover, this God cannot be incarnated in human form, 
    eating, drinking, feeling hunger and thirst, being beaten and crucified. 

    Muslim belief is easy and is in accordance with reason and 
    logic: there is a Creator and created beings. The Creator is Allaah, may He 
    be exalted, and the created things are everything besides Him, heavens, 
    earth, sun, moon, humans and jinn. By His Mercy, Allaah sent Messengers to 
    mankind, to call them to Allaah and show them the right way. Among these 
    Messengers were Nooh (Noah), Ibraaheem (Abraham), Moosa (Moses), ‘Eesa 
    (Jesus) and Muhammad, may the blessings and peace of Allaah be upon them 
    all. Allaah supported these Messengers with signs, which were miraculous 
    things, the like of which other people could not produce, which were 
    appropriate to the time and place in which each Messenger was sent. Some 
    were thrown into the fire and not harmed by it, such as Ibraaheem (Abraham); 
    some brought the dead back to life and healed the sick by Allaah’s Leave, 
    such as ‘Eesa (Jesus); one was given the Qur’aan and challenged all the most 
    eloquent Arabs to produce a single soorah like it, but they could not do it. 
    That was Muhammad  (peace and blessings of Allaah be upon him). Allaah 
    caused inanimate objects and animals to speak to him, and the stone in his 
    hand glorified Allaah, and the camel complained to him about being given too 
    much work to do, and there were many other miracles. 

    If the wise man thinks about what is keeping the Christians 
    from believing that Jesus (peace be upon him) was a Messenger from God, and 
    that he is like Abraham, Zacharias and John (peace be upon them), this will 
    put an end to the problem, as reason is in agreement with the fitrah (sound 
    human nature) and revelation. Jesus (peace be upon him) called people to God 
    and foretold the coming of Muhammad  (peace and blessings of Allaah be 
    upon him). His enemies tried to kill him, but God saved him and he was not 
    crucified or killed, rather one of his companions was caused to look like 
    him, as the Qur’aan says (interpretation of the meaning):  

    “but they killed him not, nor crucified him, but it 
    appeared so to them the resemblance of ‘Eesa (Jesus) was put over another 
    man (and they killed that man)”
    [al-Nisa’ 4:157]

    They all believe that Allaah (God) is the Lord and Creator, 
    the only One to be worshipped, and they believe in His noble Messengers such 
    as Ibraaheem, Moosa, ‘Eesa and Muhammad, may the blessing and peace of 
    Allaah be upon them all. Then they follow the law of the last of them, the 
    Final Messenger, Muhammad  (peace and blessings of Allaah be upon him). 

    There is no comparison between the simplicity of this belief 
    and its affinity with sound human nature, and the confusion and 
    contradictions that exist in Christian belief, but we will give just one 
    example, which is the issue of the crucifixion and redemption. 

    The Christians always say that God sent His only son to 
    relieve mankind of sin, and they regard that as an example of mercy and 
    justice. But we ask them: What kind of justice and what kind of mercy is it 
    for God to punish His only son – as they claim – for sin that he did not 
    commit?! 

    What justice is there in passing the sin of Adam to his 
    children, then saying that they need to expiate it? 

    What justice and mercy is there in delaying the expiation of 
    this sin for thousands of years, from Adam until the time of Jesus (peace be 
    upon him)? 

    What justice and mercy is there in making the expiation 
    dependent upon crucifixion, pain and suffering, when it could be expiated, 
    according to the Jews, by means of repentance and sacrifice? 

    When the Christians believed in the crucifixion, they wanted 
    to lift from the Messiah the dreadful shame which accompanies crucifixion, 
    which is the curse, so they claimed that crucifixion was actually an honour 
    and the ultimate aim of the Messiah’s mission. 

    See: Deuteronomy 21:23, in which it says that anyone who is 
    hung on a tree – crucified – is under God’s curse. 

    Undoubtedly believing in the Christian doctrine of the 
    crucifixion and redemption implies a number of false things, including the 
    following: 

    1-That the previous Prophets and 
    righteous servants of God were all doomed, because their sins were not 
    expiated before they died.

    2-That the Jews must be the most 
    blessed of people and superior to the Christians and all others, because it 
    was at their hands that this great aim was achieved, namely the crucifixion 
    of the Messiah!

    3-That people may indulge freely 
    in evil and sin, safe from the punishment of God, because all sins have been 
    expiated for them, and God will forgive them all their sins, as they claim.

    4-If the Messiah was crucified by 
    his own choice, as they say, then why did he cry out after the crucifixion, 
    “My God, my God, why have you forsaken me?” (Mark 
    15:34).  

    Finally, we ask Allaah to help you in your research about 
    Islam and guide you and open your heart to the truth and help you to follow 
    it wherever it is. We hope that what we have mentioned will provide answers 
    to your questions, even though the subjects that you mentioned require much 
    more detail than this. But we will be happy to remain in touch with you and 
    answer any of your questions. 

    And Allaah knows best.