Biblical Jews ethnically

Don't call it "Biblical Judaism". Call it "Old Testament Christianity".
Don't call them "Biblical Jews". Call them either "Hebrews" or "Israelites".

No habibi. We aren't mixed with Arabs. The Muslims are closer genetically to the Arabs, but that's for obvious reasons. The Christians on the other hand, especially the Maronites, have remained ethnically homogeneous ever since they set foot in Lebanon.

no, the genealogies were destroyed. no jew today can claim descent from any of the 12 tribes

You probably don’t understand who the modern descendants of certain tribes in the Bible are and you certainly don’t see all references in Revelation to the other parts of the Bible.

The jews have a little Judahite admixture but they’re mostly edomite.