You talk about “bloodthirsty westerners” but there was a lot of opposition in the West to the Iraq War. I think France refused to get involved at all in Iraq, spurring Americans to rename french fries to “freedom fries”. There were protests like this across western countries.

Anyway I would agree with you that American imperialism is bad. I just think that Chinese and Russian imperialism are also bad. For example China seems to want to take Taiwan, and islands in the South China Sea, without regard for laws or for democratic wishes.

Maybe a world of large powers (US, China, Russia) invading wherever they like is bad for all of us.