This problem exists because Amazon wanted it to exist. They chose to do business in a way that avoids traditional checks and balances.
The scale of the problem is entirely on them.
I don’t keep up with the marketplace requirements as maybe I should, but historically the biggest difference was Walmart.com required sellers to be based in the US, and amazon.com allowed sellers from all countries. This hurdle alone can make sellers much easier to chase down and throw the legal book at them.
There is no defense for Amazon. The solution is simple. Put back the ability to filter for items shipped and sold by Amazon.com only, and stop commingling inventory.
Amazon will never do this because they don’t want to be in the retail business with 3% profit margins, they want to be in the platform business with 15%+ profit margins.
Hence I take my business to other retailers willing to sacrifice some of their profit margin to ensure I don’t receive garbage the first time.
I could hazard a few specific ideas in Amazon's case, but really I'm just extrapolating from the fact that I've seen that this is how it generally works at any sufficiently large company.
Like you will get nowhere arguing that billion dollar US controlled giants should get shut down or broken up unless it’s a last resort.
That's the issue Amazon absolutely does not want to happen. Getting locked out of their own marketplace or aggregated sales data would hugely undermine the value proposition in terms of de facto earning and profit taking potential, while at the same time undermining public faith in the overall market.
Amazon can't admit they can do anything about counterfeits because no one in their right mind wants to contribute to a platform that empowers and informs a potential competitor.
This is becoming what I consider velvet glove business combat 101 that no one openly admits to.
They control the scale of the problem, and can raise the barrier to entry for new 3rd party vendors at any time.
They might be spending money, but that doesn't mean the money is actually going towards fixing the problem at hand.
When I go to return an item, I can't even select that the reason for my return is that I suspect or know that the item is counterfeited. I have to lie and choose between several somewhat related options like "Inaccurate website description" or "Wrong item was sent" among other things.
To me, it seems like if Amazon were serious about addressing rampant counterfeiting on their platform, they would collect stats from the customers that suffer from Amazon's lack of quality control.
This was quite a few years ago now, I can only imagine Amazon is spending more money on the problem now vs then.
not to defend Amazon, but maybe the scale of the problem is too big - maybe there is a long tail of fraudsters similar to the long tail of illicit content on youtube.