Every single one of the worst dictators of the last century was a socialist – Chairman Mao Zedong, Adolf Hitler, Josef Stalin, Kim Il Sung, Fidel Castro, Nicolas Ceausescu, Saddam Hussein, Muammer Gaddafi, Nicolas Maduro, Kim Jong Un, and Pol Pot. Do a search on any of them to read about their atrocities against their own people.
I think most of these dictators started with GOOD INTENTIONS. They genuinely thought that socialism’s promise of “sharing everything” would lead to the utopian society promised to them by Karl Marx. Once they came into power, they tried socialism. The fundamental problem with socialism though is that no one wants to work just to have it all taken from them and given to people who don’t work. So pretty soon NO ONE works. Then the leader who once had good intentions starts to FORCE people to work. And once you start to force people to work, you can never let go of power since those people will want vengeance. And that is how a dictatorship begins.