Aside from the unacceptable violence, the story here is far more complicated than that.
They were just impossible to work with.

I think PeopleMakeGames did a good YouTube video on it if you’ve not seen it.

The us spends that much more than anyone, including its enemies.

The us just spends way too much. Matching us defence spending is kind of a lot. Combined the EU current defence spending is second only to the us