You nailed it!
Just thinking about how all those fine socialists/commies didn’t have toilet paper or clean tap water.... Imagining and then explaining Cuba, VN, Cambodia, VN after the takeover, China; the USSR, etc.
It has to be personal.
All true Commies have multiple houses, servants, limos etc.
They are leeches on society.
They want to make everybody else their slave.
They want to be the feudal lord.
They are hateful, nasty people.
In a debate all you have to do is make them show it on the stage.
Policy? fuggedaboutit
Bernie is a crazy mean old man—and a hypocrite.
_That_ is the message.