Little correction, this is an Arab slogan - "drive the bloodthirsty Zionist invaders back into the sea". The proper Jewish slogan should be "drive the terrorist Palestinians into the desert". (Sea is to the West and desert is to the East over there.
1. Not true. The Arab East Bank in Jordan is fertile.
2. Will you invite Germans back into Poland? Will you give them bacl East Prussia, including occupied Danzig, Stettin,...
Will you then allow them to form movements to form an independent country in the occupied territories?