I believe almost all of those who would seek to harm the US are also enemies of Israel. So I would disagree. We have probably many enemies within the nation but so does Israel. They have a large number of Islamic radicals within the green line including several members of the Knesset. In addition they have several millions of enemies living within 5 miles of their borders. Even so they do a tremendous job of keeping track of members of terrorists groups within and without Israel and only they and our security forces know how much intelligence they provide us. I suspect we owe a great deal to their forces for having prevented many an attack against us thru the years.
I believe almost all of those who would seek to harm the US are also enemies of Israel. So I would disagree."Enemies" in the since that they support Israel's cessation? Or ACTIVE enemies?
I think to folks like al-Qaeda, Israel is small potatoes. I think the spend most of their time and effort on US. In their minds, I believe, Israel can be dealt with at leisure once the U.S., reacting to terror, withdraws from the stage in that part of the world.