Humans migrate for many reasons. The “indigenous” people in America migrated. When two groups of people run into each other, many times the inferior culture disappears or is absorbed into the superior one.
The Europeans were superior in technology, science, weaponry, social organization, organized religion, laws, governments, building, medicine, transportation and so on. The people who were here were overrun, as the europeans population increased and needed more space and resources. Wars were fought and land settled and the people with seniority lost out. Those are the facts of life.
This anti-columbus movement is anchored by leftists and Mexicans in the US who forget they have Spanish blood in them.
Columbus was brave and a great explorer. As a person of European descent, I am thankful he came here. I know his voyages lead to the greatest nation in the history of the word. That’s why I celebrate Columbus day. If you want a day get your own.
The liberal progressive narrative is that the indigenous peoples of America were fun loving peaceful people. Far from it they were warring against each other and committing atrocities in their own right