First of all, I was not referring to any conspiracy at all, it is simple business and benefit analysis unless you believe in idealistic and humanitarian business that only care about human well being(I am not saying they do not exist either).
Second, the mercury and heavy metals that fish you eat might contain are not injected into your blood and small amounts if any gets there.
Third, "According to the British Association for the Advancement of Science, childhood diseases decreased 90% between 1850 and 1940, paralleling improved sanitation and hygienic practices, well before mandatory vaccination programs. Infectious disease deaths in the U.S. and England declined steadily by an average of about 80% during this century (measles mortality declined over 97%) prior to vaccinations.".
Once again I am not forcing you to believe in what I believe and made conclusion  based on what I have read and reasoned so please do not attack me as an enemy of humanity I am just voicing my opinion and believe I have a valid argument. Though I like when people tell me that i am wrong, otherwise there will be no arguments and learning.