The US stopped enforcing the antitrust laws in Reagan's era. Both Republicans and Democrats agreed two generations ago that these rules were unimportant — to them.
Of course if you’re a huge monopoly, maltreat your workers and rape the Earth, you can delivery a good experience to consumers! You don’t seem to understand that doing these things is morally wrong.
But don’t worry — your side will win. Amazon will continue doing as they please. Their workers will continue to be brutalized. And we will continue to destroy our ecosystem and our climate, and leave the world a cesspool for our descendents. But consumers will be able to consume, and that’s clearly your priority.