The Israelis had crude weapons ready as earlier as 1966.
“Israel is believed to have begun full-scale production of nuclear weapons following the 1967 Six-Day War, although it had built its first operational nuclear weapon by December 1966.[13] A CIA report from early 1967 stated that Israel had the materials to construct a bomb in six to eight weeks[67] and some authors suggest that Israel had two crude bombs ready for use during the war.[1] According to US journalist Seymour Hersh, everything was ready for production at this time save an official order to do so. Israel crossed the nuclear threshold on the eve of the Six-Day War in May 1967. "[Prime Minister Levi] Eshkol, according to a number of Israeli sources, secretly ordered the Dimona [nuclear reactor] scientists to assemble two crude nuclear devices. He placed them under the command of Brigadier General Yitzhak Yaakov, the chief of research and development in Israel's Defense Ministry. One official said the operation was referred to as Spider because the nuclear devices were inelegant contraptions with appendages sticking out. The crude atomic bombs were readied for deployment on trucks that could race to the Egyptian border for detonation in the event Arab forces overwhelmed Israeli defenses."[68]”
https://en.wikipedia.org/w/index.ph...s_and_Israel&mobileaction=toggle_view_desktop
Later on...:.
“The first public revelation of Israel's nuclear capability (as opposed to development program) came from NBC News, which reported in January 1969 that Israel decided "to embark on a crash course program to produce a nuclear weapon" two years previously, and that they possessed or would soon be in possession of such a device.[95] This was initially dismissed by Israeli and U.S. officials, as well as in an article in The New York Times. Just one year later on July 18, The New York Times made public for the first time that the U.S. government believed Israel to possess nuclear weapons or to have the "capacity to assemble atomic bombs on short notice".[96]
Israel reportedly assembled 13 bombs during the Yom Kippur War as a last defense against total defeat, and kept them usable after the war.[70]”
And yet, the Arabs still attacked..... and Egypt did actually eventually succeed in achieving its goal of retaking the Sinai, which was the entire point of the war from their point of view.
And frankly after 1973 I’d say the Israelis would be the first to disagree with you.