Not to no true scotsman this shit, but does anyone self-identify as "Leninist" who isn't a Stalinist?
Marxist is a pretty tame word, all things considered. Marxism is a pretty broad tent that fits a lot of people. But I don't think I have ever interacted with a self-described "Leninist" that wasn't authoritarian and against civil rights. This coming from a guy who regularly quotes Lenin.