because Kiwi Farms and plenty of other sites have already dealt with a similar restriction of freedom via payment processors. once it was acceptable for payment processors to prevent something that's legal to own and sell from being sold using their service then everything that people generally don't like was okay to stop payments on
age verification or banning of porn will not lead to a chud revolution, or a feminist revolution, or a christian revolution, or whatever your fantasies are. loser white men will just use AI to generate whatever porn they want and continue to be evolutionary dead ends, women will continue to sell their bodies on Only Fans, and people will still laugh at bible thumpers
you just won't be able to say nigger on the internet anymore or make fun of trannies without losing your job and maybe your bank or credit card