You are in denial. A holocaust is a holocaust. It doesn't matter if it is long or short. If you round people up in camps, murder them, allow them to get sick and die, then you have a holocaust. It is just that the American holocaust was a very long one and was perpetrated by Europeans prior to the land theft becoming America. Estimates on the the numbers of deaths vary author to author. High estimates go up to 100 million and more, others are much lower at several million. Personally, I would argue somewhere in the middle and perhaps somewhat lower than that. 250,000 remaining out of even a population of even 10 million is still a huge decline and disease was the main culprit, but there was a horrendous amount of bloodshed involved and I think a lot of Americans don't like to look in the mirror because the truth is just too ugly. As an Englishman I feel the same way. Many Americans really are English.

Look I even found a video calling the genocide a holocaust. I think I will watch it actually.