It is human nature for young people to travel. Combine that with the fact that Israel is a fake country that needs to do a lot of calculation and manipulation to avoid evaporating from sheer artificiality. Countries historically are borne from a homogenous race that then expands outward. Countries like Israel, India, the U.S., Pakistan, Bangla etc etc are little more than oligarchies trying to capture the benefits of real countries. They are collections of rootless people looking to regain something they cannot remember.
Australia urges Europe to attack ISIS to stop refugee influx (dpa)
from the article: The surprising reason Israelis are fleeing in droves