You’re asking for a pretty thorough analysis from a non-indigenous person. Looking at history, the US is going to end up in a refugee situation no matter what. The water is running out in the Southwest. There are cities of millions living in the middle of the desert where no indigenous people ever chose to live due to it being unsuitable for life. Those millions are going to be displaced as soon as the water runs out. What’s going to happen with them? They’re going to where there’s water, and they are going to go before there’s sufficient housing for them. According to history, that means they’re living in temporary encampments. No one needs to force them to move in this case, they’ll die otherwise.

But then you’ve got people who live in places that do have enough water, but their living situation depends on other resources. An indigenous nation has no responsibility to maintain those supply chains if they are antithetical to their interests. I’m thinking primarily of extractive industries and their wells and their pipelines, but there are other things like electricity, climate control, transportation, etc, and each of these things is not guaranteed. Any aspect of life that people deem critical could disappear under indigenous sovereignty based on their national interests. Again, in this situation you’ll end up with mass displacements and lack of infrastructure to manage them, and again, historically that means people living in temporary encampments.

The problem with these things, of course, is that you’ve got an immovable object and inexorable force. On the one side you have extinction through climate catastrophe motivating things like refusal to truck water to Vegas, and on the other hand you’ve got millions of settlers with guns and an ideology born of manifest destiny. What do you think is going to happen? Emigration to Europe is one way to ensure that settlers get to feel like they can keep their ideology and don’t need to form militias to fight against an indigenous nation. Barring that, history shows that reactionary ideologies will emerge just by virtue of the indigenous ascending to sovereignty, even without the environmentally-enforced displacement. With displacement, reactionary forces are going to be violent and incredibly difficult to manage, so there will absolutely be repression enforced by the state on behalf of the ruling class. After all, that’s what the state is for, right? In this case, indigenous self-direction is going to be in the seat of power and reactionary settlers are going to be repressed.

But “Hunted down to the last”? What is this racist BS? Who the fuck suggests this? There’s not a single serious person who says anything like this. This is the sort of thing Europeans said to each other, wrote into laws and doctrines, and then executed. It’s not surprising when Europeans project it onto others, but it’s still just as disgusting.