Arab Palestinians have been killing their own for as long as there have been Arab Palestinians (which is not that long). They use their own as human shields, which the media quickly blames on Israel. There are frequent massacres of those they consider “collaborators” or non-Islamic, which is why almost all the Christian Palestinians have left. There are no other people that have less respect for Palestinians than Palestinians themselves.
Arafat basically reinvented human shields in 1982 Lebanon by using ITS OWN PEOPLE