I don't know that it's Christian sensibilities so much as a political view extremely susceptible to this sort of shrewd manipulation. As the person you're responding to said, the smoke screen is to cast criticism of China as racist or xenophobic. They even have a term, "baizuo", to mock this concept: https://en.wikipedia.org/wiki/Baizuo

In general you're right though. They are very successful at using weaknesses against us.

This is true. Growing up in an immigrant community (and as a minority myself), I would always hear people mock how open and trusting Americans were and how Americans were easily cheated. Anything involving the honor code would usually be violated.