Answer

My aunt is a Jewish convert. She grew up Catholic.

1. They don't want to think about how bad Capitalism is so they start pointing fingers at 20th century socialist states.They don't give a shit that the actual archives say a lot less people died, that's just "commie propaganda". Also, everything bad in Capitalism is just some scapegoat's fault, not Capitalism itself.
2. See above.
3. People just have the idea that "Socialism = Big Evil Grayscale Totalitarian Hellscape" and "Capitalism = Warm Fuzzy Colorful Freedom".
4. Well, it was run by fairly hardline communists, at least initially, anyways. That might be why.
5. Because they idealize this make-believe "small business" bullshit that doesn't exist.
6. Maybe? I don't know much about Judaism.

The number one message of these institutes is that all Jews should come to Israel. So…