:...for example, Bukarin did not like the concept of property, declaring that "Property is theft". And so on...
That's PROUDHON, not Bukharin. Marx opposed the nonsensical utopian ideas of Proudhon (most famously in The Poverty of Philosophy). Bukharin, on the other hand, was one of the original Bolsheviks killed by Stalin (for advocating job rotation and democracy, among other things).
: I hope that I have been helpful, and have not confused issues still further for you.
Doc, you ARE confusion itself!