I suspect more strongly all the time that not just a likely consequence but an explicit goal of the coming autocracy is to kill a large number of people.

It's essentially passive eugenics. The idea is to make life as difficult as possible for everyone but the wealthiest few, and again, not just as a consequence of shallow self-interest but deliberately, so that as many people as possible die, and with the idea that the deaths will be most concentrated among the most disadvantaged.

Part of the idea then behind MAGA's obsession with identity politics is to try to arrange things so that groups they don't like are overrepresented among the disadvantaged who will die.

That's also a lot of the reason then behind Musk's creepy pro-natalism - they're trying to get a head start on breeding white fascist replacements for all of the undesirables they intend to kill.