Marx was also materially bourgeois as he lived and fully depended (materially) on a bourgeois person (engels), as far as i know he didnt have a job and he was fully dependent on engels for everything.

theory is good but not entirely necessary lol, marxism is scientific not academic, you just need to know the basics and everything else is optional (but still good to know)

girls

Anyone can be a communist, all it takes is your want to destroy capitalism and the inequality and oppression it brings, coming from rich or poor means nothing, as you said many famous marxists, including marx himself, were materially bourgeois, but they didnt oppress the proletariat and were genuine revolutionaries who actually wanted to end the oppression of the proletariat, these people were class traitors to the bourgeoisie and aided the proletariat against their class interests, calling these people anything but socialist or communist is plainly absurd to be honest.

And this is coming from someone who regularly deals with food issues.