It's easy to understand why anyone would sympathize with Marx. People inherently deserve the products of their labour.
Furthermore, you don't want enormous power structures to classcuck you out of your rightfully owned work. You shouldn't be worse off materially having those systems of power in place.
But doesn't this just lead you to libertarianism rather than communism?
Some people will work many times harder and much more efficiently than others, ending up with much larger portions of amassed labour, especially if they autistically do this for many years.
Imagine the best vs an average worker: 40h/w at 50% efficiency, vs 100h/w at 85% efficiency. In 10 years, that guy working 100 hours will have output more than the other guy will by the age of his retirement.
If people own the products of their labour, how can a state rightfully take that away from you?
And if you want no state, you'll still need to have protection agencies. Those protection agencies will be of value to people based on how strong they are, so naturally they will conglomerate until there is only one super-strong agency, creating a de-facto minimal state, thus giving you libertarianism.
It seems like Libertarianism is more true to the core values of communism than communism itself.
So why be anything but a Libertarian?