from what my sibling who did poli sci taught me, a lot of those stances are logical conclusions of the explicit property rights stances (liberal theory promotes personal, private and public property, whereas communism (if i understand it correctly and let me be clear i don't) does away with private property. i'm not well read enough on the subject to say specifically where or how).

we really need different word in english for [member of the communist party] and [believer in/promoter of communism].