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 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.