"Ok, Ill ansawer that in two parts.
1) I never meant to say that the USA dose not support Israel miltary wise. What I did say, and htis is a fact, that the USA never intervened by force in the Israeli-Arab wars. So, If it hasent happend when Israel fought against 7 countires, I doubt it will if we fight only one. IRGC can perhaps slow down IDF advance, but they cant invade Israel and therefore they are not a major risk.
2) Now let me correct some of your errors...
A)Israel lost 102 aircrat in the entire war of 1973, not in the first days. The Americans sent 36 F-4 Phantom fighters, a welcomed, yet not complete replacement. It can hardly be seen as what save the IAF.
B)The IDF did loose a large noumber of tanks but the ammont sent by airlift was almost negligeble(due to the huge weight of tanks).
C)The Arms embargo on Israel was after 1967, not 1956. In 1967 the majoruty of IDF arms were not American they were French or British.
Israel wged 1 offensive war since 1967, all the others were a result of Arab hostileties.
D)In 30 days of fighting in Lebanon Israel lost somewhere in the region of 5 to 15 tanks. Even if Israel looses 400 tanks it will still be able to manuver into damascus and destroy 90% of Syrian forces. What think the Suni majority will do to the opressive Alawi minority when that minority looses its military stregth?"
America may not have physically intervened in the Arab-Israeli wars, but their is no doubt that many American military men whether they were fighter pilots, tank crew men, or technicians got permission to go serve with the IDF in the various Arab-Israeli wars. The American military men volunteered to fight for Israel and that is a fact. If Iran send large amounts of IRGC troops to Syria under their defense pact, their is no way Israel will get anywhere near Damascus, even Egypt which currently has peace treaty with Israel stated that if Israel tries to invade Syria proper that it will have no choice but to defend and come to Syria's aid.
And in worst case scenario God forbid it comes to that, Iran and Syria have a plan under their defense pact that they will coordinate their missile, chemical and biological arsenal in order to maximize them to their full potential and launch them at Israel if Syria face such a dire situation. That is why Israel will never invade Damascus and try to take Syria proper, Israel's defense chiefs know that if they back Syria into a corner of dire situation that Syria in coordination with Iran will launch their WMDs at Israel. Look how strategic small Israel is, they won't be able to handle a full chemical and biological attack.
If Israel lost 102 aircraft the whole war as you claim, well their air force would have been depleted if the war continued longer with that rate of attrition. And everyone knows Israel will lose way more that 400 tanks if they actually tried to go all the way to Damascus, all Iran has to commit to Syria is 10,000 IRGC and Israel will have a nightmare on its hands in the ground. Imagine how much worse Iraq would be right now if Iran actually committed 10-20 thousand IRGC to wreck havoc, and this is one of America's fears.