The article mischaracterized the petition. If you read the change.org petition it's about protesting Visa, Mastercard, and moral advocacy groups. The petition even goes as far as to point out the hypocrisy of the decision.

These same payment processors allowed platforms like OnlyFans to operate with minimal oversight, despite multiple credible reports and lawsuits alleging the presence of real sexual abuse content involving real-life minors. That is a criminal failure of responsibility. Yet, when it comes to entirely fictional depictions, these same companies act swiftly — shutting down creators, restricting access, and acting as global censors.

I wish I had a technical solution but I really don't. As much as I can't stand cryptocurrency in the way that it's being implemented, this is the kind of problem blockchain technology could potentially eliminate. I think the bigger problem is social - people trust credit card companies because of things like charge backs and fraud protection. Shopping in a store is one thing but when you're buying from a faceless digital store front people seem to want a third-party to secure things and protect their money.