A liberal would say, “Good! Fewer carbon feet on the ground. Now we need to eliminate the rest of them!” “Uhm, Heather, do you want to die?” “Of course not, don’t be silly. I’m just talking about the useless eaters.”
(That’s actually pretty close to a conversation I had once. It didn’t go much farther as I seldom spoke with Heather after that.)
Had a similar conversation with a militant vegan once.