It's akin to anti-union arguments where everyone "buying" into the cloud AI circus thinks they're going to strike gold and completely ignores the fact that very few will and if they really wanted a better world and more control, they'd unionize and limit their illusions of grandeur.
Most Anti-Union arguments I have heard have been about them charging too much in dues, union leadership cozying up to management, and them acting like organized crime doing things like smashing windows of non-union jobs. I have never heard anyone be against unions because they thought they would make it rich on their own.