Pushing back against the Visa and Mastercard stuff may yet see results. They're already taking stock hits. For my part, I'm making complaints on the phone daily and I'm not the only one. The more people raise a stink about this in the proper avenues, the more payment processors are going to have to contend with the fact that censorship is not going to benefit their profits.
Oh yeah, definitely, the "louder" we are, the more power we have, so glad to hear that you are doing your part. Still would recommend also trying to push some legislation if possible (not everyone has that option but those who do should definitely use it), so that those companies won't be able to do so legally in the future.