There are 2 main schools of thought popular in Israel now on this subject.
One view, the Arab population is growing faster then the Jewish population in Israel proper and the idea of one State for 2 peoples risks causing a demographic bomb within a few years after the consolidation of territory under the control of the State of Israel. There is a fear that one day Arabs will outnumber Jews so much that the definition of Israel as a Jewish state will be endangered both by demography as well as by the ballot box.
The second view is that the Arab birthrate is decreasing, so much so that the Jewish rate of births per thousand has actually surpassed that of Arabs in the territories. The belief is that a Jewish majority will be maintained even after the absorption of the entire West Bank. Gaza of course is not part of the equation.
Below are some links of interest that I suggest one view before submitting any comments to this blog. I welcome all opinions as long as there are no personal attacks, no hate speech or vulgarity.
Supporting the first view:
Supporting the second view: