It's called a monopsony[1], regardless, antitrust regulation is famously dead under the current US administration.
very cool word, but I think the etymology stated in Wikipedia is wrong.
the second part of the word just means purchase (in a weird ancient Greek tense). there's no relation to fish whatsoever.
(I'm Greek)
Antitrust has been dead for decades. It spans administrations and parties.
Regulation is dead under this current US administration (unless you pay a bribe). It's so weird this is where we are right now and most of the tech leadership has to play along even though it's technically illegal?