I'll answer that for you. Yes, yes they are. 60% is the estimate I found.
Here is an article that supports your claim.
https://www.beckershospitalreview.com/public-health/nearly-60-of-hospitalized-covid-19-patients-in-israel-fully-vaccinated-study-finds.html
It also ends with the following note:
"a growing body of research has shown those who are unvaccinated face far higher risks of severe illness or death from a COVID-19 infection."
Here is a good takeaway from that: It means blaming the unvaccinated is a genuine bullshit move since so many of the population are fully vaccinated.
Another article here that is referenced in the first:
https://www.science.org/news/2021/08/grim-warning-israel-vaccination-blunts-does-not-defeat-delta
Suggests that boosters aren't a reliable solution. It's still a bit early to conclude that, but I thought I'd go ahead and help you with your argument since your opening was just to spit out, Israel and your follow up was a blurt with not much to expand on.
Not an insult... just an observation.