Earlier quoted context omitted.
I wait for the day that this conduct becomes illegal, because it can destroy people's lives. It is actually surprising that consumer protection laws do not yet address the issue of due process.
I would assume it is contract based and thus falls already under contract law. You could start a civil case. There is no need to make something illegal that already has ways to get resolved. Part of the problem in the US is that a civil courtcase is a horrible thing. At least in Europe the loser pays the court costs of the winner. That already makes this kind of behaviour less likely. In the US you have to spend lots…
See for example the people whose lives have been affected because they were banned from Facebook for absolutely no reason, and they could no longer access Facebook Marketplace. I think it's very dangerous to create a new type of second-class citizen that can no longer access certain online services, because naive algorithms were allowed to go rampant, without any checks and balances.