Guns were part of it, but the depopulation of the indigenous was largely the consequence of old world diseases. 90%+ of the population decline in the Americas were causes by things like smallpox and measles. It's pretty easy to dominate a population when the overwhelming majority of it is wiped out. Columbus's voyages were a key event in history that led to the formation of United States. In that respect, celebrating Columbus day is celebrating America in a sense. Indigenous people's day represents a counter-celebration that intentionally excludes people. It's not unifying. It's divisive, and it's just one more symptom of all the divisive tribalism that always seems to be happening.
You know, I'm sick of all this crap from people having a chip on their shoulder about what some people did hundreds of years ago. Those people are all dead and nobody alive today did any of it. Grievances aren't legitimately heritable. A lot of progressives got the notion that members of historically marginalized groups possess moral superiority. It's a big lie. There is no original sin for being a white guy, and the whole thing is this twisted, delusional perspective which isn't fair at all. Modern progressivism isn't egalitarian. It puts white people, especially white men, in a position of inferiority, and I categorically reject it on that basis. Go look at the bills that are coming from leftist legislatures. They explicitly discriminate against white people or men, or are designed to do so. They're not even trying to hide it anymore. They just come right out of the closet and say fuck white people. If that's their attitude well they can go fuck themselves. That kindof shit happens all the time (e.g. https://www.governing.com/columns/col-problem-with-preferential-bids.html https://nypost.com/2021/02/25/bidens-covid-relief-bill-is-chock-full-of-anti-white-reverse-racism/ https://www.nytimes.com/2021/01/03/us/oregon-cares-fund-lawsuit.html
) Giving preference to bids based on gender or race. Giving loans and other relief to businesses based on race and sex. Giving money out only to businesses owned by black people. Please, that's not egalitarian.
Why I should be on board with a party that advocates discriminating against people like me because of race or sex? Last I checked nearly every Democratic house representative, every Democratic senator, and Kamala Harris all voted for the legislation (tie-breaking vote) and President Biden signed it. There are words for these sort of things. It's called racism, sexism, and prejudice. That's what the Democratic party is doing these days, and if you can't see it then God help you because I sure can't.