the arabs made war after the zionists started the nakba, if zionists weren't so aggressive the arab states likely wouldn't have sent any soldiers to fight, just taken economic and diplomatic measures.

if there were several jewish revolts until the 600s that is evidence that they did not result in significant expulsions. the fact that the region became majority christian is not evidence of a major expulsion of jews and subsequent replacement by christians, likely they mostly converted just like how most christians would end up converting to islam. In any case it wasn't muslims who expelled them so they can't take it out on the indigenous muslims of the west bank.

there are records of jewish presence across the medditerranean region and the near east for centuries prior to the first roman jewish war

some would say that they were kicked out of their homeland so it wasn't really a choice but there's actually no evidence that this ever happened. for one thing, jews have always lived in judea and there's no record of them being expelled from anywhere there except the city of jerusalem in the 2nd century by the romans after they tried another revolt. there was a huge jewish diaspora before that revolt and even before the 1st century revolt. the jewish diaspora was likely primarily a result of economic migration and subsequent success of jewish communities in certain economic roles as a diasporic community spanning many different lands.