Memes

I understand what OP is saying, but I'm pointing out that it's silly to take a philosophically rich, globe spanning, radical tradition and throw it aside as "a thing stupid children believe", and use that as a thought terminating cliche to not engage with the tradition as it exists in the real world.

You don't have to ascribe to Marxism. I happen to, but I would have posted the same bit if OP was ragging on Anarchism like that as well.

Side note, Cuba has changed quite a lot since Castro. I would encourage you to read up on the rewriting of the Cuban constitution, and the implementation of the new Family Code, both of which happened a few years ago, and are at the very least, interesting.