Leftism is a revolt against modernity - they dream of a utopia where everyone lives in a collective farm run by secular priests and the Party. Where people are tortured and executed if they deviate from the Party’s orthodoxy. A childish world where things become true just because the Party leaders demand it. They want a few trappings of modernity where it helps the sexual revolution - hospitals that are efficient at performing abortions or sex change operations (for “free”) but can do little else. A fast Internet that delivers Party propaganda or pornography but censors everything else. But for the most part people are serfs with a ruling caste to control them.
Leftism is about the oldest battle on the planet, Exploiting the have nots against the haves, to achieve power.