“I disagree with the premise that the Left wants to kill people....at least not physically.”
So long as sufficient resources can be confiscated to maintain this herd of voters, they’ll be allowed to live. When resources become scarce and insufficient, terminations - however veiled - will begin.
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.