Stop wasting your time discussing with concern trolls here. If you really want to make a difference take it out there.
https://www.reddit.com/r/itchio/comments/1m83s71/things_you_can_do_to_counteract_payment/

EVERY single bit of information needed to fight back is listed here:
https://www.reddit.com/r/itchio/comments/1m83s71/things_you_can_do_to_counteract_payment/
Not only it has all the information to contact Visa, MasterCard and PayPal through emails and phone numbers (in America, Europe and Japan). But it also has the information to report them to the government for being a duopoly with fraudulent anti-competitive policies. There's also links to the Congress bill that would force them to comply. Multiple big streamers already made videos denouncing the censorship and calling people to action with overwhelming support. Visa and MasterCard are getting called and denounced right now. Is your choice to take actions against this or waste your time with blackpillers and bad faith actors who want you to stay idle and do nothing when the reality the fate of this hobby is in our hands.