American military just has enough power to project, while the government enjoys almost no backlash for committing war crimes, because what, are you going to sanction or sour relarionships with the biggest economy in the world?

It's not just army, it's an entire system built on imperialism and carte blanche to do anything. Military is just an instrument, and it will do the same in any other country under similar circumstances.

Russia bullies Ukraine. China bullies fleets in South China sea. Pre-WW2 Japan was going mad in a quest to conquer Asia, before being roughly downed by the bigger US - for its own interest, of course. Pretty much any big economy, given a chance, will do this. That's how politics works, and military is an easy way to project power onto other countries, and bully the hell out of them.

Which is why it has to be abolished.