A retailer wouldn't want to deal with this. They would expect their distributor to weed out the fakes for them. If enough people complain about poor quality drives, you fire them. In my opinion, anyone selling these must be doing it knowingly at this point.
Ah, but we live in the glorious future, where retailers are just fronts for flea-markets filled with third party crap, and claim zero responsibility. You thought you were buying a flash drive from Best Buy? HA, you actually bought it from AHJKHJ Pty Ltd! And no we won't help you!
Distributors that care probably use something like this: https://www.ureach-inc.com/