The data is misleading. Israel counts the Jewish population in the West Bank as its own while it does not count the Palestinian population there.
If not ignoring reality, then between the Jordan River and the Mediterranean Sea, Jews and Arabs roughly break even.
The Message of Judges
The struggle to reach a majority is known as the Demographic War. In the 1990’s, Israel tried to break the pattern by bringing over one million Russians. They were given immediate citizenship by the racist Law of Return,* and caused a major shift in favor of what the Central Bureau of Statistics classifies as Jews.
Alas, the definition of Jew in the Law of Return does not follow the definitions by ultra-Orthodox Jews. Many of the Russians do not even hide their lack of Jewish roots.$ Over the years, this is turning into a serious problem.