As I have said repeatedly to my father when discussing U.S. history, if there are no consequences to misanthropic actions, then people will continue to perform those misanthropic actions.

The U.S. (the New World as a whole really, but especially the U.S.) was founded on misanthropy and violence. And no one in the history of the U.S. outside of some hundred slave owners, has ever been made to suffer consequences for that misanthropy. Therefore, it will continue, the U.S.'s entire history, outside of WWII, has been us breaking our treaties with our enemies, and cannibalizing our former allies for profit after we weaken them.

And we will continue to do so unless someone else or something internally stops us.