You've been downvoted a bunch and I can see why but I also somewhat agree with your point.

It's not Amazon that creates this situation. It's the market system itself and it will always exist, because if Amazon doesn't do it some other employer will -- in some jurisdiction or scenario in which they can get away with it -- and gain a competitive advantage. Unless there's a labour shortage, or government action, it's a race to the lowest common denominator or worse. And that's why the formation of a union across the whole sector is imperative.