Please read “You can still trust the communists to be communists” by Swartz & Noebel.
Communists believe that it is perfectly OK for 75% of the population to be eliminated if the remaining 25% are fully communist and not “infected” with bourgeois thoughts.
Indeed, the left wants to kill anyone that opposes their vision of heaven on earth.
I’m agreeing insofar as they’ll keep beneficial peons alive so long as their continued existence contributes to sustaining communism. But yes, once they can afford to kill off dissenters, they will.