As an American (3rd generation), I assure you that many of us are firmly aware that this nation was built upon violence and committed violence on a grand scale. In my personal opinion, we have done a lot of good, but also a lot of bad. A lot of our statecraft was learned from the British and the French. This did not really change until after the southeast Asia debacle and things started to shift to a less cynical and more nuanced view of the world.

Unfortunately, 9/11 slammed us hard back into being angry and defensive. COVID just made it worse...

It will probably be a generation until we calm back down. Or Putin/Xi dies. Whichever comes first.