NO services other than the Federal PARKS would be shut down.
As far as Israel is concerned, they have as much internal strife of Commies v. Netanyahu as we have here in the U.S.A.
If Israel with their vaunted security services AND NO 2ND amendment rights for its people cannot protect its people, WHO are we to interfere
We have been Israel’s ally and protector for nearly 80 years. Abandoning them would be evil.