To be clear I'm not letting Amazon entirely off the hook here, but Seth's situation is somewhat unique in that "someone looking for a particular book" seems to me like a really different use case than "I want an air fryer".
And "Amazon’s theft makes products more expensive" falls a little flat when a main reason for shopping on Amazon is that their prices tend to be really good.
https://sellercentral.amazon.com/help/hub/reference/external...
You wouldn't, your product would languish in obscurity and unless the searcher knew the exact actual product name forever be on page 200 of the search results (As a Sci-Fi book author I found this out the hard way). Influencers and having followers can also help your product break through, but that's about it. Self promotion of your product is usually actively discouraged or banned by many forums.
Make YouTube videos. Food porn is a thing, and some subset of that crowd will want to watch you fry stuff with your "pro" fryer.
It is a bandaid for a dysfunctional market with high transaction costs of trust(reputation) and triangulation(discovery).
Amazon only excells at low transfer cost - no negotiation and cheap delivery
They do the reviews themselves, watch for returns and quality issues, and can actually provide consumers with the best products.