This is a really good point and it's a mess to calculate. So, if you include all of Israel AND Palestine, then Arabs surpass Jews. Within what is currenlty Israeli controlled, that doesn't seem to be the case, yes. You're right this is a complex fact. What is the case is it will be close to parity if Israel controlled all of Gaza and the settlement areas of the West Bank if those regions continue to include the people who currently live there.