Might want to tell them that https://en.m.wikipedia.org/wiki/List_of_Arab_members_of_the_...
https://en.wikipedia.org/wiki/Law_of_Return
I know an American Christian family of Palestinian origin that proved their home had been in the outskirts of Nazareth (5 generations back, with concrete proof) that were denied a visit to Israel because they are not Jewish. It is shameful and repugnant. While anyone can visit Israel in theory, the gov will deny you entry if there is connection to the land that precedes Israeli settlements. And of course, the law of return is exclusively for Jewish people