Except it's almost impossible for the majority of customers to distinguish between the 'good' sellers and the 'bad' sellers, and we shouldn't pretend this isn't a deliberate effort on Amazon's behalf. Not only do Amazon often make it onerous to find out who is in fact selling an item, they also:
1) Co-mingle the inventory of multiple sellers in their distribution centers, so even if you buy from a good vendor you've used in the past, you still might end up with garbage from a shady vendor.
2) Allow widespread and rampant review manipulation / botting across every product category on the site, making it even more difficult to distinguish 'dodgy vendors' from so-called good ones.
3) Allow vendors to BRIBE customers with things like free items or amazon credits for 'organic' reviews, again, making it a Sisyphean task for most customers to find reputable vendors.
> and then they idiotically blame Amazon
This a callous and inane assertion. If a customer buys something from Amazon's website, and pays Amazon, and Amazon emails them a receipt, and Amazon delivers the product, the customer has every right to blame Amazon if the product they receive is crap. I'm frankly flabbergasted that you somehow think it is the fault of the customer.
> And the Amazon basic products are generally really high quality, from clothes and more high end niche items to daily necessities, Amazon basics items are best in class.
This reads like ad copy to me -- Amazon basic products are fine, but they certainly are not 'best in class' or 'very high quality'. Amazon doesn't even go that far (they items are literally called 'Basics'.). Furthermore, if the only thing a customer can feel confident purchasing on Amazon is a Amazon Basic items, it kind of defeats the point, doesn't it? There are not Amazon Basics versions for most product categories on the site, and the allure of Amazon is that you can get anything you want from one vendor, delivered quickly (A to Z).
(Not to mention, I've seen a lot of cases where Amazon Basic items are clones/knock offs of well-reviewed, high volume products designed and manufactured by third party companies. Amazon then copies these products and promotes its own listings, which isn't exactly the most ethical practice IMO)