Earlier quoted context omitted.
"This is the result of commoditizing 'starting a business' to the point of near-worthlessness in the bottom 50%+." Is this not just a market effect of saturating the market with competition because suddenly running a business is comparatively easy (communications technology, platforms and existing logistics and production networks) to any other era. I can probably start a company drop shipping crap on Amazon in a sho…
Amazon inflating rates after capturing the market, permitting counterfeits, and penalizing sellers offering lower prices off-Amazon, has nothing to do with market efficiency or commoditization.
Why shouldn't they be allowed to do this? If you want to sell on their market, you promise not to undercut them.
Amazon exists as a discovery tool for consumers. They don't want third party sellers to get free advertising. That isn't anticompetitive.