Should the United States Worry About "Zionists" as Fifth Column? Yes.

Interesting. But I would like to know who the author is. I've never heard of this site before, either.

on behalf of a state that since its inception has been at war with all of its close and distant neighbor

All? Have you forgotten Egypt and Jordan have both signed peace treaties with Israel?

And all the wars were started by the neighbours attempting to destroy Israel. Charming of them.

You have tried to spin Israel as a warmonger and danger to the region whereas the truth is that Israel has only ever fought in the interests of its own survival. You are being disingenuous in the extreme.

At the expiration of its mandate on the fertile crescent (Syria, Palestine and Iraq), the British colonial power had given Palestine to the Jews, amputated Lebanon of Syria to hand it to the rich Moslems Sunnis and to rich Christians and finally enthroned Al Hachem on Iraq. Israel was incepted in the Middle East to continue on the colonial fact on behalf of the British, with the target to despoil most lands to the Arabs, to prevent them from developing economically and from accessing the democracy, because of the wars of Israel which continues till now constitute a heavy threat for the Arabs. At first, Israel was not more than a State function in interest servicing of the GB which was then relieved by the Americans.
Israel is striving today to shift from the State Function to the State Nation asserting to federate the Jews around the values of their religion. But, in fact Israel is federating the Jews around chauvinism, ultra-nationalism as embodied by Zionism.
Today Israel owes its survival only to the financial, economic and political support of the USA. Certainly, Israel is not any more the sharecropper of the USA in the Middle East, but their privileged partner.
Certainly the Zionism could represent long term Fifth Column, of nature to threaten the own interests of the USA. For the time being Zionism is in phase of incubation in the USA .