Perhaps you should have bothered to major in Jewish history rather than your religious mythology version of it. Prior to around 700BCE ancient Israelites were polytheists. And Ancient Jews themselves weren’t racially pure either. It is easily confirmable you are of mixed heritage by doing a simple DNA test but you can tell by just the diversity of appearance of Jews. This mixing of DNA and culture is what antisemites use to mock you as a fake Jew.
The ONLY way you would count as a real Jew is if you take a primordialist’s view of history.. which would also make me a real Greek. What genocidal antihellenic bigots like you do with Greeks though is flip flop between… modernist histography for Greeks.. .primordialism for yourselves. Intellectual fraud.