I wonder if the real reason credit card companies have been responsive to these groups is the potential for lawsuits that drag payment processors into them, which is a result of various shitty laws that have been passed to generally empower these sorts of regressive trolls to do so. If so petitions from the other side might not be as effective, because they can be sued for providing services to the wrong people but not so much for cutting off service, and there’s not much actual risk to them even if a lot of people are mad about the latter.