I gave the Squid Game and Hunger Games example here for a very good reason. Consider Americans, back 10 years ago they're still very confident about themselves and their culture. When Hunger Games came out they don't worry about "oh noes the Japanese are infiltrating our culture", instead their channel their pirate ancestry and go "look at me, I'm the captain now" and just took what they liked and made it their own.That "gamification of blood sport as social commentary" genre was mostly invented and popularised by Japan, but it was mostly for domestic consumption, eg: Battle Royale, Kaiji. Other countries are able to take that idea and distill the essence out of it and come up with globally popular franchise. It first happened with Hunger Game then again with Squid Game. The fact that foreigners can make a more globally popular version of their idea annoy the Japanese to no end.
GI is just like that too.
If we go further back, it's not like the Japanese invented animation, they learnt how to make it from westerners, the french in particular. Even the name "anime" might have french origin. But over the decades the Japanese took it and spent a lot time money and effort on it and made it their own thing, and now it's closely associated with Japan. And who knows, maybe back then there were Japanese too who were like "this isn't my bunraku puppet theater, what is this foreign devilry"
While you worry about anime culture diluting pure traditional Chinese culture consider a Japanese man who's worked all his life in ACG industry and he sees Akihabara like this:

How does he feel?
And if you say well none of those above look like Chinese people, how does it help Chinese soft power consider this: how many anime characters look like Japanese? Does anime help Japense soft power?
So if China is to become the regional hegemon it's high time we all acted like one. Instead of worry about not enough "Chineseness" in your anime game you should mentally think "I like what you guys have done with that aesthetics over the decades, it belongs to me now" or as we say in Chinese: 拿来吧你
