The idea that you earn things - that you earn respect, that you earn income, responsibility. the vote, punishment... these ideas are anathema to the liberal mind.
Although images of perfection in people's personal lives can cause unhappiness, images of perfect societies - utopian images - can cause monstrous evil. In fact, forcefully changing society to conform...
Leftism seeks to undo most of the values that are distinct to Judeo-Christian religion.
Also, when you escape a Communist regime, you treasure liberty and you understand that as government and state expand, liberty must contract.