If you look deeper into it, you'll see that this problem is not limited to marxism and predates it.

I think it's rather a type of person.

Narcissists do take great advantage of marxism as a useful tool to achieve their goals.

But so they do with conservative religions and all kinds of ideologies.

Look into flatearthism, for example. Full of narcissists taking advantage of others. Full of lies and deception. And they hate marxism.