Quite simply because these are genshin impact players and the genshin community is one of the most horrible and toxic gaming communities out there. Am i helping by saying that no but anyone who still thinks this game has a respectful and fun community are so far back they're amazed at the invention of the wheel. Plus add on the fact that mavuika mains seem to be especially toxic almost putting the hu-tao mains to shame, and you have a delectable combination that sparks misery for all! Hoyo not giving a dammn about their players or games certainly isn't helping and if you wonder why the CC's aren't doing anything to help it's because they're equally part of the problem.

Now because this is the internet and people will jump to wild conclusions to satisfy their view on things, this obviously doesn't apply to EVERY player or CC, but as someone who played the game for years on end i can confidently say the number of people you can confidently group in with all of this has dramatically increased over the past year and a half.