I suspect American patriots will have to get out their/our guns and kill the bastards. If we don't we will be "assimilated" under the evil powers of the Lefties. Though they lost this election, Trump is likely but a "bump in the road".
We're assuming that there's going to be scarcity worth eliminating people for once automation drives the cost of labor away. We currently have plenty of empty housing, waste 50% of our food, etc... who's to say that they'll even need to eliminate people? And even then, as you both demonstrate, how successful could they even be trying to take on legion with 2nd amendment rights? Is the risk worth it?
The Left keeps working the "white guilt" button, hoping we'll all just throw up our hands and surrender. (And of course a lot more is being shoved up our collective asses by current Leftist government...) The American patriot colonists were in a similar situation, were they not? Collectively they proclaimed, "FUCK IT! Give me liberty or give me death". Paraphrasing a famous quote from the Revolution... "We must all hang together or we will surely all hang separately". Will we get to that point in modern times?
They may or may not "need" to eliminate "useless" people.... but they will WANT TO! What, you think those bastards are magnanimously going to allow the "no longer useful" to survive and be supported just because they are alive? Are you from a different planet?
If it does, I will fight and give my life gladly.... Greater love has no one than this, that he lay down his life for his friends. John 15:13 That's why all our fallen soldiers and first responders are legit #heroes.... Circle of life.
I'm not exactly up for that (one war was more than enough for me)... but given that and the choice of "knuckling under"...