Then go after them for monopolistic abuses. Arguably Lina Khan is the first FTC chair to be making noise about it yet the only thing about Microsoft has been their OpenAI partnership because it's sexy & nothing about their traditional marketplace participation. The EU is going after them a bit more aggressively & having some success. Ultimately this would still be the US government's failings - claiming that makes Microsoft a national security threat is a joke & disingenous.

I know the history of MS anti-trust fairly well having grown up during the core part of their monopolist years - now they're part of the familiar oligopaly that's strangling tech.

> and we know that all monopolies require government enforcement to prevent others from competing...

Do we know that? That may be true of government run monopologies, but I'm pretty sure most marketplace monopolies rely on lack of government enforcement. For example, here's some analysis showing how US case law makes the government wary of going after Amazon for driving Quidsi out of business & forcing an acquisition by Amazon: https://cei.org/blog/amazons-private-labels-dont-threaten-co.... Ironically US does enforce rules against dumping from international players which shows that it realizes the harm that such activity can have, it just chooses to allow it for domestic players abusing smaller domestic players.