Does Israel really need the United States?

Previously, in Defending Minarchy, Israel was only discussed in passing, but now the subject deserves a little more attention. Before that happens, these are some basic facts about the modern state of Israel:

GDP: $232.7B
Per Capita Income: $33,299
Active military personnel: 186,000
Men fit for military service: 1,226,903

Now, for a reference point, Switzerland has the following equivalent statistics:
GDP: $264.1B
Per Capita Income: $32,300
Men fit for military service: 1,375,889

Switzerland is a very wealthy nation that has a long history of independence. It also does not maintain an active duty military anywhere near as strong as the Israel Defense Forces, preferring instead to rely on a large body of reservists. Their economies are similarly robust, and Israel even has a slightly higher per capita income than Switzerland.

From an economic and military point of view, Israel is significantly more powerful than its neighbors. Even accounting for population disparities, Israel has the key advantage of being able to design its own modern weapon systems. With a modern economy, modern military, and modern defense industry, Israel has much of the key components needed to maintain its own national defense without any American assistance. In fact, Israel is one of the few allies of the United States that is able to provide for all of its own defense needs.

None of this is to say that Israel should be thrown to the wolves, but it is an important reminder that Israel is not like Western Europe or South Korea. It has not grown soft under the protective umbrella provided by American military protection. Israel is not in existential danger from its neighbors because Israel has the military means to unleash a conventional and nuclear holocaust on them in retaliation in a worst case scenario.

Most of the arguments for "standing by Israel" are purely emotional. They are not rational from either a strategic or a religious perspective, nor are they are even reflective on how American "support" for Israel has actually manifested itself. The United States may vote against meaningless actions conducted by the United Nations against Israel, and provide it token foreign aid, but the United States has also encouraged Israel to enter into an unacceptable relationship with the Palestinians. If Hispanic terrorists from Mexico were to launch as many attacks on Texas, California, Arizona and New Mexico as Israel has been expected to stomach from the Palestinians, Mexico would have faced fierce military retaliation from the United States. However, presidents from both parties, have essentially told Israel to "just deal with it" with respect to attacks from Gaza and the West Bank. Seeing as how this has been the norm now for the better part of nearly sixteen years, and it shows no signs of changing, Israel is indeed better off with a less involved, or not even involved at all, United States.

The simple fact is, aside from foreign aid and access to American military technology, the United States has done little to show its true support for Israel, and much to make life easier for its enemies. One might say that the United States has been, especially in the past sixteen years or so, as much of an enemy of Israel as a friend of Israel. Supporters of Israel need to stop thinking about abstract principles, and face reality. With the sort of engagement they have gotten from the United States under Clinton and Bush in particular, it is best for Israel to have the United States simply walk away and just trade with them.