In fact, many would say that monopolistic powers are the end result of capitalism. Thus the reason for antitrust regs to act as a reset.

And they would be wrong. The fact that everyone does it is the reason no one truly succeeds, not in the long run. A MAD strategy not only with two players but with millions.

That is why every free market monopoly that has ever existed has passed and we are not living under the thumb of a single all encompassing mega-corporation and the only pseudo-monopolies possible are the ones guaranteed by law in regulations.