"Neocon" can certainly be a shorthand slur for Jew... on the other hand, it does represent a brand of conservatism that turned a lot of people off: expansionism, endless war, accepting a lot of liberal programs etc. Bush was big with the neocons: project for the new american century, Paul Wolfowitz, and all that.
I didn't like that brand of conservatism in the 2000's and I don't like it now.