Wrong!!!
Palestinian birth rate is highest in Gaza and the West bank both are larger then any jew birthrate.
Palestinian also marry much earlier then jews, whilst many Jews are doing national service or travelling afterwards
Palestinian s also have their children quickly ie one after the other
The lowest Arab birth rate is in Israel itself but even that is the fastest growing in israel, combined Arab birth rate plus the additional factors such as early marriages etc then the arabs who are equal to the number of Jews across Gaza, Israel and the West bank will form the majority population over time
In Israel proper it is the Arab population currently 20% of Israel and it's useless haredi population which are fastest growing neither of which do national service etc