I really hate to say this, but large companies like this need to be regulated via laws. There's simply no other choice. Having Amazon throw their hands up and say "There's nothing we can do, we have algorithms" or hiding behind the safe-harbor laws is not acceptable.
Having their ability to shut off peoples' incomes or being victimized by counterfeiters, with no human contact and no process, is unacceptable and needs to be changed. They aren't changing fast enough and they don't want to change because it's expensive, and the only solution is to force them via laws, which I'm loathe to support but it's the only way.