RICO is.
https://en.wikipedia.org/wiki/Racketeer_Influenced_and_Corru...
Rico as written walks right up to the limit of constitutionality in a dozen ways. It's never really been thrown into a knock down drag out legal action between titans on equal footing (i.e. a bigco legal team, potentially helped by other bigcos). It might survive nominally but it probably won't be in serviceable at the other end.
I say go for it. Heads I win. Tails you get RICO reform.
Did Amazon think they were too big to convict?
I wonder if they will meet the fate of Standard Oil, back in the day.
https://www.theamericanconservative.com/robert-borks-america...
(BTW that source is right-wing and can hardly be said to be biased against Bork).