In regards to Jews and Israel I think the rabid left-wingers hide behind the swastika. Not to say there aren’t Nazi-loving kooks out there but it provides convenient cover for the Israeli-hating left to get their message out about Israel.
Nazi’s were a left wing group in Germany, not a right wing group. The Nazi Party was actually called “The National Socialist Party”, so the left has more in common with Nazi’s then conservatives do.
And BTW, the US Senator from West Va, Harry Byrd is the former head of the WV KKK and also the founder of the same group in WV.