You claim: “What really “started the entire crisis” was the joint Arab invasions of 1948.”
That is not correct.
The massacre of Palestinians by Zionist militants in order to seize towns and villages they wanted in addition to ‘partition’ offerings, started before 1948, when neighbouring Arab states attacked themselves having to deal with the crisis caused by masses of refugees crossing their borders.
You also ignore the fact that the majority of Palestinians – which included Muslims and Christians – were being forced from their homes and displaced to partition zones, and yet you expect them not to complain or put up any sort of resistance…..