The Spanish fucked up by not exterminating the natives like the Anglos did. Today, the US has a thousand problems, but millions of Cherokee and Lakota marching for Injun Lives Matter isn't one of them.
And modern "based" Spaniards support Hispanism, which is their idea of "civic nationalism", where Spain is a culture you assimilate into.
They just don't have it in them to exterminate natives.