A liberal is a liberal whether they call themselves Jewish or not. For a liberal, allegiance to socialism supercedes in all cases any other identity.
In terms of our own security, a successful strike on Israel would be devastating, depriving us of one of our most valuable intelligence and defense technology partners, to say nothing of the fallout that would come from such a clear failure of our security policy, not only in that area of the world, but globally.
It's not up to the US to protect Israel; the Iraeli Government can do that just fine, thank-you-very much.....they should be able to do so; we gave them the nukes to do it.