For the sake of working together to try and get something done, here is the ACLU petition: https://action.aclu.org/petition/mastercard-sex-work-work-end-your-unjust-policy
I have been keeping an eye on it since Steam first started taking down some of it's NSFW games and the petition has skyrocketed by thousands of signatures since what has gone down here on itch in some hours alone. As of typing it is at 82,000 and growing rapidly.