You could say the same thing about the terms democracy and republic, which a lot of those regimes you listed also claim they are. There was a time in the early 1800s of Europe where republic and democracy meant the reign of terror in the French revolution, an association strongly encouraged by the ruling monarchs of the time. They didn’t give up on the term though and they reasserted it’s original meaning of government by the people. You can’t let those in power dictate the words you organize around, because they will just define all of them as bad.