It's only a clone if they're violating a brand or other trademark. Otherwise, folks are just upset that their product has now turned into a commodity.

It's not Amazon's job to determine if clones violate IP. That's the purpose of our court system. Amazon will, without a doubt, remove the product given an order to do so. But they aren't going to make a legal determination on whether or not IP laws are being violated.

Expecting them to do that is absurd.