I have as much, if not more, grounding in Jewish identity than you, I assume.
My maternal grandmother was Jewish, and we observed the High Holidays with her when I was growing up. I was raised, and still live, in one of London’s most Jewish communities. I am not speaking from ignorance.
So the idea that your perspective carries some unique authority because you claim you know about Judaism and Jewishness is simply wrong.
And for the record, under Hitler, I would have been persecuted too.
None of these points, however, are prerequisites for opposing antisemitism. Your argument suggests they are, and that logic is fundamentally flawed. Persisting with it only undermines your credibility.
I support the existence of Palestine and will continue to speak out against the treatment of Palestinians. That position is not antisemitic.
I also oppose Islamophobia. That, too, does not make me antisemitic.
It is people like you that minimise real antisemitism.