They think themselves supermen because they dare consider the really big thinks. But since they are really only humans inculcated with the moral imperative that is associated with Neo-Malthusianism, they need catchy slogans to help keep them focused on their task. It -- and they by extension -- are too important. So their task must never be forgotten (like Nancy Pelosi's eyes). Else their normal consciences, cleverly suppressed now, might sneak back and take over and spoil all the megalomania of the architects.
So here are my own dim-witted speculations of what is in the mind of those who hate you.
"Eliminate the no longer useful so that the best may survive."
"Übermenschen über untermenschen."
"So that we may survive, let the unvaluable die."
"Live and Let Die."
I'm sure you can speculate on more clever slogans. The Left is filled with sloganeers, so I'm sure they have much more catchy elevations for themselves and put downs of you.