When I mentioned Native American repression, I had the federal government breaking treaties in mind which falls under legal category but you’re right that the gov also did the genocide.
More generally, as a foreigner who now lives in the US, I held Americans to a higher standard than, say my own government or major other governments. Not anymore, I feel like there’s just different trade offs in living in different countries.
The US obeyed its own (highly immoral) laws on slavery, genocide of Native Americans, etc.
I'll give you the point about promoting coups in foreign countries (couping is actually the verb).