On going the other way, there is/was quite a reaction on China half-ripping off Disney (!) characters in regional parks or goods. I'd argue China making "knock-off"s or "stealing our IP" is pretty close to that as well.

Then, it's pretty hard to culturally appropriate Christianity when it's setup with a doctrine of expansion and push to fit everywhere it can. That was basically the premise of colonialism in the early days. Same way we wouldn't be crying rivers because Asians countries embraced Coca Cola.

> germ theory of disease

Hasn't that been a two-way street for basically the beginning of times ? The Silk Road was as much about exchanging theories and culture than exchanging goods. There's no discussion the very base of our own culture and science is heavily influenced by the early advancement of eastern countries.