You probably don't realize that there is zero evidence that the small pox blankets thing ever happened. If it ever did, it was almost certainly unintentional. The "genocide" occurred from about 1500-1600 gove or take, and it was not intentional. Nobody even knew it was happening. 99% of the natives that died never even saw a white person, ever in their lives. It's the only "genocide" in history (a very disingenuous way to describe a bunch of people who's entire civilizations couldn't defeat the rhino virus) where nobody was intentionally killing anyone at any scale. You'd probably be amazed to find out how much stuff you're carrying around in your head that is absolutely bullshit.
Here's another one for you: the US government never made an effort to erradicate the Buffalo so the Indians would lose their food source. Like the above "genocide" shit, it's another lie. It all came from some lying sack of shit who claimed he heard Gen Sherman say it in Texas in about 1880. The problem was that it never happened, but people have been repeating these lies for over a century now.