I think its great to live on a hope and a prayer but bottom line is you need to do your hishtadlus (aka Job) and there is a severe lack of those in Israel. I’d say that is the primary reason.
When I was looking for my first job, I was getting a daily e-mail with job listings. Lots of them. There is absolutely NO lack of jobs here.
Ah! There may be a lack of jobs if you’re the type who is very picky. But if you’re the type who is willing to do whatever it takes to live here, there are hundreds (thousands?) of jobs from which to choose.