They both suck.

And the fact that all socialist states have been authoritarian is not a coincidence, it’s a feature, and you can blame Lenin for that.

Marx died before he could complete his work, and it’s Lenin that introduced the theory that people are basically mindless animals that can’t save themselves, so the only way to achieve communism is for them to be “guided” by a vanguard party that is formed and ran with cultish behavior.