A billionaire can afford an airtight castle and a decade's supply of food.
If anything automation makes things less stable due to complex dependencies.
But that's so, so different than the role Europeans played in the wholesale genocide of indigenous folks.
Obviously there were wars and conflicts between indigenous people. Obviously some of those resulted in the destruction of a tribe, culture, or people.
But that's nothing like the genocide brought by colonizers. Scholarly estimates put pre-1492 populations in the US at about 5 million. At it's lowest point, around 1900, fewer than 250,000 indigenous people lived in the US. Across the entire continental United States, 95% of indigenous people were killed, amounting to millions of deaths.
Whatever the scale of ante colonial conflict, it just isn't comparable to the genocide that colonizers brought, and to argue that it was somehow comparable is tasteless at the very least.
Yes, there were some who probably stopped claiming indigenous heritage, but unless you have a source, the most accurate scholarly number we have for the total number of indigenous people in the US is between 230k and 250k in the years between 1900 and 1910.
Politicians don’t get elected by saying, “Hey, let’s make things worse for you while we work together to help people you’ll never meet.”
Maybe if 25,000+ people die somewhere in Texas due to some kind of climate catastrophe there’s a chance that’ll be the tipping point. But I really doubt it.
"Tackling climate change" without radical technology rollouts involves decreasing the standard of living for billions; or at least, preventing them from entering the current carbon-intense developed world.
Nigeria, India, and Indonesia aren't going to go along with "oh, yes I know that the West got rich via high-emission carbon-based growth, but we need you to not do the same thing".
(On the other hand, reducing emissions in the developed world is already underway, for a real but limited lifestyle cost).
Russia, for example, will directly benefit from the earth warming. They will become a massive grain export economy.