I am not ‘fixated’ on anything. Note that the first 2 deifintions are basically the same -— ie adherents of Judaism ( albeit one is historical rather than current). The last is in reference to the kingdom which in fact practised Judaism (Old Testament and all that). They were not Philistines or Egyptians or other gentiles.
Or from adherents, or. Israel and orthodox Jews in the USA recognize you as Jewish if your mother was Jewish without regard to whether you practice Judaism or not.