Why can't the third party seller be held accountable? Why do we allow unaccountable third party sellers carte blanche access to US consumers? The way that I se

Why can't the third party seller be held accountable? Why do we allow unaccountable third party sellers carte blanche access to US consumers? The way that I see it if someone is harmed then they are due justice. If Amazon lets dodgy international third party sellers run hog wild and harm consumers then Amazon should be at fault here. Otherwise there is no incentive to police these things, there are victims, Amazon makes money, and sellers aren't held to account. It's ridiculous.