Walmart's Great Value is exactly the same idea and is created and promoted the exact same way both in the their stores and on their website.
I think what astonish me the most is that people are opposed to something that is actually a plus for the customer. Amazon Basics is definitely one of the great thing on Amazon right now. Instead of random cheap garbage I can buy stuff that I know will be "good enough" at a great price.
If Walmart is 10% of brick-and-mortar sales it's hard to argue that store brands are too competitive. 90% of that market is not walmart.
When Amazon approaches the majority of all ecommerce sales, it starts to become a bigger problem when they control the marketplace and start to undercut your products.
In general I think the fair thing to do is to make the marketplace distinction (even for store brands, which are often white-labeled third-party generics sold under multiple names anyway). You run the marketplace that allows others to sell their products, or you sell your products directly... you shouldn't be able to coordinate both as one business.
What happens when everything is free/subsidised by advertising? How do you assess the competitiveness of Facebook when they don't charge anything to use Facebook, Instagram, Whatsapp, ...
If you actually take a look at their offering (https://www.amazon.ca/-/en/stores/page/BFAE3282-E15B-47EE-90...), most of these are legitimately "basics", things that existed 50-100 years ago. Wilson won't die out because Amazon sells a volleyball, nor will Duracell because of offbrand AA batteries
This gives every non Amazon brand a massive disadvantage because they will be associated with scams.
Amazon is offering a big open marketplace where they invite people to offer goods, then they observe which goods sell well and how are they made, then the push out the sellers and they offer their own versions of it, essentially pushing the risk onto sellers and only reaping the benefits.
They are abusing the trust of sellers on their platform and they get away with it because of their sheer size.
But this is exactly what is done at innumerable retailers like Walgreens and Safeway. The retailer is a "marketplace" (they sell multiple brands for each product) who controls "search placement" (where each product is displayed, e.g., eye height vs. near the floor) and have insider information on how well the different products sell. They use this advantage to make their own knock-off brands, and its generally a win for the consumer.
We don't hear about Wal-mart deciding to place Procter & Gamble's laundry detergent on the fourth row down and their private label at eye level in the store, do we?
Because that's not at all how Walmart operates. All of the laundry detergent is on the same aisle and the generic versions are immediately next to their brand-name equivalents.
They can put brand option on the bottom shelf while the store brand generics on the mid/top shelf so its easier for customers to pick up.
“With its billion-dollar private labels, Target has become a master at spotting trends, copying them, and capitalizing on them”
“Target, for its part, seemed to see the C9 contract’s expiration as a chance to do what it increasingly does best: develop and launch a stylish brand internally—and keep all the revenue for itself.”
https://www.fastcompany.com/90661935/retail-thrives-on-copyi...
Walmart cannot cater it's experience to what it thinks I might buy. Amazon can.
It's just not the same. There is a huge asymmetry of information (from both suppliers and customers) that makes Amazons overall practice feel much more predatory.
Oh, and Amazon is 50% of all online retail. Walmart is something like 10% of all brick and mortar retail.