Illustration by M.J. Hiblen
The founding ideal of the United States is unlimited "westward expansion" (complete exploitation of the land and the genocide of indigenous people). The United States has been incredibly effective at achieving this. This is not a fringe interpretation of history, it is relayed in the first episode of the PBS Revolutionary War documentary that came out last year.
"Freedom, equality, and liberty" or whatever may be your values, but in practice they never were intended for people who weren't part of the white, christian, landowning male class who founded the United States.