This isn't Islam vs. Judaism

It certainly isn't, given that Palestinians are a mixture of Sunni Islam AND Christianity (various denominations) but also non-denominational Islam, Druzism, Samaritanism, and Shia Islam and some Jews. In other words - a secular society, much like Syria

So, even as it is framed as a JEwish/MuSlim war it aint'. It is at the end of an Imperialist attempt to rob land from the Palestinian inhabitants who can claim occupation since Ancient Greek times. But the British Royalty and Rothchilds felt that they had the authority to just grant random Eastern European Jews the right to grab the land, and murder the inhabitants. All totally legal I am sure.