The fix is legislation that ensures that payment processors aren't allowed to extra-legally moderate transactions based on "I don't like it". They need to be forced to process all legal transactions. Because these entities are nearly irreplaceable and are the cornerstone of many consumer industries, it seems like a reasonable compromise to me.
Just pushing back is neither guaranteed to succeed nor last for any serious amount of time. The ideological crazies can throw their entire existence at ensuring the fact that the "impure, corrupting filth" is squashed. People who oppose it might like the things that get censored, but none are religiously attached to the cause, not to an extent that would lead to a serious amount of organizing, anyway.
The problem comes from "legal transactions".
The Pornhub problem came from going after the payment processors for facilitating supposedly illegal transactions--namely, underage porn. The crusaders (in every direction) keep looking for ways to undermine the protections (Section 230 in this case) and all too often the government doesn't fight back.
As for keeping it in the family games--we still have "obscenity" on the books and such games fall afoul of it. I find the concept of "obscenity" bonkers amongst consenting adults.
Rather, we remove the leverage by doing what these activists threaten to do, without all the hysterics. If the exorbitant fees give so much leverage to activists, fix the fees. and you know, allow the market to be freer and all that.