Noam Chomsky fantasised about being on Epstein's island?

Mrs. Chomsky, you mean.

Chomsky spent his life talking with monsters and moral idiots---Dershowitz, Lawrence Krauss, John Silber, David Frum, Andrew Marr, ad nauseam---so his being nice to Epstein and Bannon was simply part of his normal polite behaviour.

Yes, he made some tactical choices with which irritated a lot of people, including me. One of those choices was his endorsement of Hillary Clinton in 2016; he made it clear, however, that he did so with extreme reluctance. He was always a trenchant critic of the Clintons, and of their British cyphers Blair and Brown.

He should not have mixed socially with Epstein? Well, he should not have mixed with a lot of equally evil people, but he did. His writing, and his public speeches, will live on long after this embarrassing mini-scandal has been consigned to the dustbin of hysteria/history.