I'm in China at present.  They may be everything you've stated.  How do you believe our largest trading partner is any different?  How many people has China killed in the past 10 years?  How about the USA?  How many countries has China invaded in the past 10 years?  How about the USA?  

The only point you've made of any value is that China is not democratic.  So because China has an alternate form of government (that has taken more people out of poverty than the entire Industrial revolution) you believe we shouldn't trade with them?