I wouldn't have a problem with communists if they were just people who were wrong about the best system, but otherwise were willing to debate their ideas, respect others views who disagree with them and act like a human being. You would think the whole idea of social goodness could attract people who at least have a big heart and are well meaning.
Instead throughout history and now we are seeing that instead communists are fucking trash humans with no heart at all. In the last year and a half we have some of the most pathetic displays of basic human decency of our lives as woke communists go around name calling, bullying, playing games, virtue signalling, physical violence, etc. Meanwhile at the highest levels the moral decrepitness is consistent as the media lies relentlessly and the Democrats act like cartoon bad guy authoritarians. Communism despite being on paper a more well meaning ideology than Nazism ends up as destructive just cause its believers are equally dogshit morally.
Why does communism pair so well with shitheadness instead of softies?
Because it's rooted in sin.
Communism appeals to people's jealousy. They're jealous of those that have more without realizing that (usually) those who have more worked hard to get it. So they want to take for themselves what other people have earned. That could be homes, food, medical care, clothes, etc. Any basic understanding of economics or history will tell you that if people aren't rewarded for hard work, the hard work will stop and everyone will suffer. That's what we see today with Cuba, North Korea,and to some extent China, and previously in the USSR.
The sin of pride, the worst one of all.