Aside from maybe payment processing, you're also drastically overstating how limited the options in these spaces are. There are literally hundreds of domain registrars. Hosting providers are also plentiful and you can always colo. Facebook and Twitter are not infrastructure. Uber and Lyft are not known for their business services in any case.
Capricious bans do happen, but if someone somehow manages to get blacklisted from all of AWS, GCP, Azure, Rackspace, and DigitalOcean, odds are pretty good that that's society working as intended. It's nearly impossible to convince that many businesses not to take your money without actually being a terrible person who doesn't deserve to have your views publicized.