The Students for a Democratic Society figured they would have to kill 30-40 million Americans who could not be indoctrinated in their proposed gulags.
The Leftist activist running these things are the ones who count, not the uninformed sheep.
There were millions killed after the left pushed hard enough to get us out of Vietnam and allow the Communists to take over.
Good point about SDS. For Vietnam and Cambodia, they weren’t outright calling for Genocide, as is being done regarding Gaza...although, yes, they had to know what was coming if they got their way.