But they have also encountered IP theft and Chinese nationals assaulting local and foreign nationals in countries they are lucky and fortunate to have the right to study in, over protests:
https://www.scmp.com/news/asia/australasia/article/3019888/h...Now I hate that I have to say this (because it should be a given), but _obviously_ this does not apply across the board, but when people experience shocking behaviour like this you can see why they might hold grudges or biases, even when that's wrong to do.
That aside, China & the US (of which are are a lot of Americans on this site) seem to have held a grudge for quite a long time now, on both sides. Which is a shame, because we're all human at the end of the day and especially science should recognise that stupid tribal human concepts like nationalities and borders are meaningless to the big picture.