Why should a creator be responsible for the voiced opinions of their fans? That standard makes no sense no matter how you slice it. A creator's job isn't to police their audience, it's to provide information/entertainment.

Just because he has the power to censor people you don't like doesn't mean he should, or that it's a reasonable ask. Instead of passively alienating you by not acting, censoring those people would actively alienate them. He's much better off letting individuals take responsibility for their own comments, rather than joining any given side's thought-police.

As soon as you create the standard that you are responsible for what your fans say and do, you've lost. You can immediately be held accountable for the speech of the worst of them, and good luck regulating that.