Nope. palestinians are not Arabs.

Arab Muslim had a practice of when they took controle of a land, they would offer the slaves in that land a choice. Convert to Islam, or remain a slave. After about a milli seconds thought on the offer, the peoples enslaved by East ROman masters converted en mass. Eventualy, they adopted Arabic as their language.

So where did all the "Arab" Chtristians come from??? We all know that in Muslim ruled lands, Muslims converting to Christianity is a capital offense and would just get them killed by the rulers. So, are those Arab Christians really Arabs? No. Are all those "Arab" Muslims really Arabs? History of local language and genetics shows they are not. They are as local to their lands as Brittish people are locals of England.