Going back further than that. The genocide of the original inhabitants, the constant breaking of treaties and then taking over land. Deliberate starvation and causing deliberate disease, and the occasional massacres (the massacre at wounded knee is next level horrific, US soldiers were wearing the ripped off vaginas of the women they slaughtered on their hats as trophies according to Dee Brown's Bury My Heart at Wounded Knee, which is a solid source). But, I lived there. I love aspects of that fucking country, and yeah, like someone else said, I hope those aspects find a way to start coming through again because this is truly grim.