I mean, Fulfilled by Amazon is providing a storefront and fulfillment services for things people ship to them. If you are making the argument they should verify every item they ship then that should extend to all fulfillment providers, no?

Don't get me wrong, I think FBA and 3rd party sellers are a huge mistake for Amazon as a whole. I just disagree that the onus should be on Amazon to make sure the items people fulfill using their services are not fakes.