The US cellular market is not monopolistic. "Mono" = one carrier/supplier. Nor is it a duopoly. There are three (really 4, Dish), and they are highly competitive.You’re ignoring how monopolistic markets actually work.
The reason we’re paying $80+ for throttled speeds isn’t because of technical limitations — it’s because the big three carriers have carved up the market, locked out real competition, and trained consumers to believe that pricing is somehow justified.
MVNOs can’t offer better deals because they lease capacity from the same networks that have no reason to undercut themselves.
That’s not capitalism — it’s market capture in plain sight. Be well++
You are probably trying to describe the situation as 'high barrier to entry' which is an appropriate designation. But just because a market has a high barrier to entry (think auto, airline industries) doesn't mean the participants are greedy, that they're not competitive or aren't as capitalistic as other/smaller industries.