Palistinian Jews exist, and where not perged, the religion spread as religions do, after WW1 the area was given to the united kingdom, and after ww2 the UK and UN without concent of the Palistinians opened it up to (eruopean) jewish settlement. The issue is that they are not from the area, nor have any claim beyond zionism to the region
I used to work in IT, and both then when I was on my personal time, and now, I do not love helping people, but all it takes is someone else doing it poorly would annoy me enough I would end up helping someone