Most papers written by Chinese in good conferences or journals are either written by someone with decent enough English or some university-hired translator (which is totally fine). Not everyone has the privilege of being born in a area which happens to speak the language the world chose as “universal”.
Can you write proper Chinese? The whole world is trying to adapt to a single universal language and for some cultures with completely different roots is probably much more difficult than for others.
...and? I'm just offering an explanation, I didn't say they should "git gud".
Awesome! We now identified someone, other than our own politicians, as an alternative who can be blamed for all the problems that have undesirable effects...