This actually raises a core part of the problem: why does Amazon need literally dozens of sellers for every piece of junk on the site? For any sort of commodity on the site, there can be thousands of results. All the same. All within a few percent of the same price. All completely indistinguishable through any mechanism in the search facility. There have been so many times that I've been looking for something with a specific feature, and it's just page after page after page of stuff I don't want, that I finally give up and just buy the crap they're shoving at me. That brutally-carnal competition for every nickel and dime is a big part of the motivation to flood the platform with fake reviews.
What made Amazon great at the start was the fact that they DID NOT carry every conceivable item under the sun, from every single person who wants to spin up a mercantile account and give it a whirl. I've gone back to buying most things from brick-and-mortar stores because THEY are still doing the curation. They're not going to carry 17,000 different USB cables, and the ones they do are going to be high-enough quality that they don't have a high rate of return. I wish Amazon all the worst. To paraphrase Yogi Berra: No one shops at Amazon any more; it's too crowded.