I've seen a multitude of other comments here proclaiming all those other genocides were okay because they were thousands of years ago.
Where did anyone say it was okay because it was longer ago? Please point me to it, because I read the entire thread and did not see this once.
The genocide of native new worlders is historically unprecedented and that is fact. I highly doubt that genocides on the same scale, magnitude and horror are commonplace throughout history. I would urge you to support your claim with evidence or examples if you are going to repeat it, otherwise it is entirely baseless.
How much of the tab am I supposed to pick up?
However much it takes to bring up the status of the natives to what it would have been had they not been massacred and expelled, and undo the propping up of Western civilization on their backs. If you'd like more specific examples, I'd be glad to give them to you. Just ask.