Not necessarily. There’s tons of antisemitism in The American Fascist Party the GOP, but they’re 100% on the side of the Israeli government.
The conservative brain works in mysterious ways. Some support Israel because of some end-times prophecy nonsense, some think that every Jew that moves to Israel is one less Jew in their way. Others just decided they hate Muslims more than Jew.
In fact, equating Judaism and the Israeli government is arguably a kind of antisemitism itself
That’s a different thing. You can oppose Israel without being an antisemite, but it’s trickier to explain how you can be an antisemite without opposing Israel. Hating all Jews while somehow militarily supporting those Jews. While it can be explained (see above) you have to admit it is rather counterintuitive.
And anyway I would not expect GOP dynamics to easily translate to the AFD.
The whole “Apple products are great because they control both software and hardware” always made about as much sense to me as someone claiming “this product is secure because we invented our own secret encryption”.