The entire world has become aware of the true nature of Zionism. Once the propagandized boomers are gone, so will be Israel. Also, considering that rockets are currently raining down on Israel, I don't know how you can claim that they have effectively beat Iran.
Can you explain to me exactly how you predict Israel will "be gone"? And where will all the current population move to? Why would these countries accept millions of people? I don't think you can actually answer these questions because this is a fantasy.