Israel Versus Gaza Strip

As of 2014 the population of the Gaza Strip was approximately 1.8 million people.Israel's population is approximately 8.5 million. Gaza's area is approximately 141 square miles. Isreal's area including the occupied/stolen lands is approximately 9000 square miles.It's getting more crowded in Gaza.It's not too far fetched in the not too distant future that half of the Gaza inhabitants might decide to invade Israel and personally visit Prime Minister Netanyahu. What would happen ? I don't think that the Zionists can kill that fast to stop the invasion.