Robomatic, The dictionary? I don't know which one the dictionary is. I'm an Oxford man, though I have friends who much prefer Collins'. My Chambers (mini) gives communism the same meaning as the 2nd meaning in my Oxford (concise). For socialism there is one definition, nation's wealth belonging to the people as whole and another belongs to the state in Chambers and the Oxford only gives the oxymoronic old Labour definition (means of exchange?). Personally I would rather trust the actual practitioners than the word collectors which necessarily give simplistic definitions which do not encounter all meanings, and can even get it wrong (see this). Neither have I seen your definition of socialism before, it seems unlikely that an -ism can pertain to objects or actions.

Seeing as we are discussing Marx I think we should be following his idea, especially as you are familiar with those fiddly bits of Marxist dogma.

Finite in capitalism means the limit of profitable, rather than physical, extraction and that technology consistently improves efficiency and provides alternatives (and without the fetters of capitalism would do more) so running out of fuel isn't the end of civilisation, but even if it did I would much sooner be in socialism than capitalism where you would end up with Richard Branson driving to a movie premier in a limo while there wasn't enough fuel for tractors and ambulances in the rest of the world.

Considering that the USA has just got itself a job lot of the stuff at
knock down price I am frankly much more concerned about climate change than whether I'll be able to joyride around town in a Bentley.