Nope... this is a lie. And everybody knows that. "Increase in number" - is a typical Nazi rhetoric. This is what Zionists have been saying about their "Untermenschen" since they started to ethnically cleanse Palestine to transform it into "Israel". As with any settler colony, there is also no "Israel proper", because it is illegal and illegitimate. All Israel has been created by conquest and military subjugation that are illegal under the international law.
Even in 1948, Zionists have never intended to be content with the already grabbed land that they forced the UN to agree upon.
Firstly, Zionist land grab pre-1947 was not even possible without Zionists working hand in hand with Nazis and Mussolini. It is the known historical fact. Zionists have proclaimed the unity of Zionism and Nazism in every pre-Israel writing. Only after the defeat of fascism they changed the tune promptly. Inventing the racist deception about the "Mufti". It is very shameful behavior. But today, your guys Nazi essence has come to the surface. There is nothing in Zionism that is not a mirror of Nazism and fascism in general. Especially the race superiority and outlandish lies about your designated "Untermenschen" - at times VERBATIM what Hitler or Himmler said about Jews back then.