Israel can take care of itself pretty well.
Unlike us, they dont have obscene rules of engagements and I think if the situation were dire, a lot countries would go down with them.
They have nukes and would use them if it came to it.
The important part of what you wrote was “go down with them.” Islamists are happy to “go down” to destroy the enemy. And they have and will continue to that en masse, until the only ones left standing are them. We are well into that process.