This was a question I never got a Marxist to resolve properly. Where lies the purported distinction between 'personal' and 'private' property? And this is why the abolition of private property is just plain unworkable, at least in the present state of society. Perhaps under some sort of fully-automated gay space communist system, it would work. Elon Musk is a bourgie. The soil of Mars is red and very seizable. "Mars" is just one letter away from "Marx".