And the communists (like 0bama) truly believe that the reason that communism hasn’t failed is because of the unprovable hypothesis that it would work if everyone in the whole world were communist.
If only the bourgeoisie were eliminated completely,
communism could usher in the golden age as promised.
They’ll keep working toward that goal, and no “failures” can ever disprove their belief.
“truly believe that the reason that communism HAS failed”