do other groups self hate and are they ever referred to that way and is it a problem when they do? There are probably some French people out there that aren't super keen on France, are they called self-hating Frenchies? Do they get upset when called that?
or is this yet another thing that only affects Jews?
I think it is a pretty common accusation to level at conservative black Americans that they are self-hating, but that's not something that really receives as much attention. (The examples I listed, Unz and Shamir, are both ethnically-Jewish Holocaust deniers, which is a position that we usually associate with anti-Semitism, though it is often hard to say what someone's motive is for holding a particular political or historical stance. I'm not sure that I would agree that 'self-hating' describes the stance of people whose anti-Zionism leads them to criticize pretty normal aspects of Jewish culture, like Kaufman; rather than self-hating I think people like this are just very alienated from the reality of modern Jewish culture.)
I think this is something that is discussed by Jews very often because Jews are big-time participants in online political debates
Does Murray Rothbard count as one?
What about Shneur Zalman? Frankly there is a long Jewish tradition of galaxy-brain support for openly anti-Semitic political figures on the grounds that 'the long-run effects of their policies would be good'. I'm not sure that's what's going on with either Holocaust denial or anti-Zionism, though (or that focusing on its anti-Jewish aspects is a good way of identifying precisely why anti-Zionism is so offensive).