I doubt the US would have acted to defend Israel in 67, as the Soviets made it clear they would get involved. (in the 73 war US forces were put on alert all over the world - defcon3 I think)

the original post was about - Arab paranoia or belief in outrageous conspiracy theories - and one aspect of that may be the helplessness
they feel - but one has to wonder about the state control of media
and the constant indoctrination of young children - into admiring
and thinking that the most beautiful thing they can do is to become a shaheed.

In a recent New Yorker article, a journalism professor from Texas who
spent some time teaching in Saudi Arabia constantly came across the
argument that 9/11 was actually caused by cia/mossad - and yet any stories remotely critical of the Saudi regime get zero coverage.

a fire at a girls school - a number of rescue & fire trucks responded but when they got there they werent allowed in by the religious police as the girls didnt have their heads covered, and since they were locked in they couldnt escape and all burned to death.

or the town of Jeddah which had a sewage problem received a budget of millions a number of years ago to build a waste disposal plant - but some official in charge just kept the money and built himself a fancy villa in San Francisco as well as as his own businesses in town and completely got away with it. Now they have to bring in trucks to dispose of the sewage and are dumping into some holding pond above the city (which is a time bomb since its on a geological fault)

or some Saudi businessman brings in a number of workers from India
takes their passports and forces them to work for him as slave labour.
and when they protest they get threatened with jail - as they have no rights in Saudi Arabia.

of course there are the well publicized cases of british and canadian workers - tortured in jail, and framed with liquor bootlegging.

the fact is - given the corrupt and authoritarian regimes they live in (such as Egypt, Saudi, and Syria) the conspiracy theories of US and Israel are a lot easier to take.