In those cases it's the business owner who decides. What happens when the decision comes after a mob puts pressure on the owner to drop that costumer or else?
I think it's a pretty accurate description of what we're seeing now. Leftist government seizes power and enacts a mass purge of dissidents, including the sitting president. This is nothing new in history and I'm simply pointing it out.
If Twitter was being fair, many democrats would be banned too since they also said things to whip up mobs this past year with far worse consequences. Some are still ongoing (Portland).