Well, the point was that the relations between US and Israel are a two way street, one that benefits Israel immensely BUT with advantages for the US that by far outweigh the cost.
Now, I'm not talking about the direct monetary aid as this is not the issue, Netanyahu looked to eliminate that dependency in his last term (you can imagine how joyful Lockheed and co. were at this possibility). That money, for the US, is chump change considering the strategic reach an ally like Israel provides it in the ME region (intelligence and strike capability). Unlike many other countries, not even one American soldier died over the protection of Israel, while Israel did the West some favors by taking out the nuclear capabilities in both Iraq and Syria, with no US intervention.
As Israel is the only country in the world that without an army, would be overrun in 48 hours, and surrounded by neighbours who don't think its existence is legitimate, denying Israel from arms procurement is just like announcing it has no right to exist. This, as opposed to what Ron Paul thinks, IS taking a stand, especially when you arm to teeth Jordan, Egypt and Saudi Arabia at the same time.
Anyway I wasn't trying to make this another ME thread, my point was that only a child thinks US can do well without any regard to what goes on in the world. That vacum will be closed very quickly, and it will certainly not be in the benefit of America. Israel will do fine, probably, its the weaker countries - Japan, Taiwan, Chile, South Korea, Europe - that will have the problem.