What a truly mindless film.
First the peer reviewed work and the vast consensus of expert historians in the field of epidemiology all agree that north of 90% of the native Americans who died in the Columbian exchange died from disease mostly smallpox, that was inadvertently introduced. To blame Columbus, or any European for that is absurd. If you think they are to blame, then China is where the plague originated is "guilty" of mass genocide of Europeans, and is also guilty of the hundred of millions killed over the millennia by the flu. And Africans are to blame for yellow fever, malaria etc which have killed more humans than any and every single phenomena, including war, slavery, etc. Or that African Homo Sapiens are guilty of wiping out millions of Homo Erectus, making them extinct worldwide, as the African H. Sapiens "invaded Eurasia. Most of the remaining native Americans killed, in South , Central and North America, were killed as different groups of native Americans aligned with Europeans to fight each other.
Here is a stone cold fact: If native Americans had had the wherewithal to come to Europe, they would have brought back smallpox and the same 90% of all native Americans would have died even if no Europeans set foot in the Americas. Whose "fault would that then be?
Even worse than all that is the didactic tome implying the facts around Columbus are somehow new. No. What is new is this insanely false idea, imbued in people today, brought up no doubt on Disney's sanitized Hercules, that heroes are somehow perfect -- when in fact they are always also deeply flawed, especially by today's norms. DR. Martin Luther King Jr was a philanderer, once laughed as he witnessed a woman being raped, Marie Curie was an antisemite, Pocahontas betrayed her own people. Name a hero and really look at them and judged them by today's standards and you get this kind of nonsense.