Genuine question. They treat Anime like it's something their little brother made which they patronize and take from him. They treat V-tubers like they need to be subservient. I could go on.
I can kinda get proximity and history... But for fucks sake ain't you mad over Nanking and them being one of America's closest allies? Too hard to ignore the big player on the block so you act all slick and cool leaning on their shoulder as if you own them?

Seriously, why are Chinese obsessed with Japan so much and act like they own the place?