I see your propensity for being wrong extends to other topics. How many years of your life have you spent in China or Taiwan? Taiwan is culturally "old China". Mainland China is but a shadow with most real Chinese culture lost through communism. Taiwan has spent more time as a modern nation than the mainland and you may incorrectly view that as Americanized, but that is a statement based on ignorance. Taiwan is no more "Americanized" than any other Asian nation, arguably less.
because they prefered to integrate in their midst invaders and make commercial alliance than brutal imperialism like Romans did...
You really need to spend more time reading about Chinese history before writing about it on the internet. There simply is not truth in this statement. Some dynasties emphasized trade (while building great armies), others conquered. The only difference is China has always been at some level isolationist. The Chinese people are not so much self policed, certainly not throughout history, as policed, ruled under tight control, likely because they are strong minded and not individualistic.
I spoke here about the general culture not about some modern chinese individuals you meet in their modern business buildings ...they are like us they want freedom...but their culture, history and backgrounds differ completely...
Most modern Chinese, in their modern business building have less attachment or even feeling for their past culture than Western people do. They know of their history, but it carries little influence.
Perhaps you, in your modern Western accommodation should quote less what they have read in books to someone who has spent years engaged in a culture and experienced.