Maybe, or maybe not. But, what we ended up with, and actually have had all along, was groups whose motivation had nothing to do with their economic status, and who are quite willing to sacrific million of their own. Most of the 9-11 hijackers were not the downtrodden poor, they came from quite well off families.
What motivates them is the words of a 8th Century pedophile, who commands them to Jihad from his grave.
In 1786 he Ambassdor of the Dey of Algiers was asked by US Ambassadors Jefferson (to France) and Adams (to Britain), why Musslemen (Muslims) hated Americans so. The Dey's ambassador answered "Islam was founded on the laws of the prophet, that it is written in their Quran, that all nations who should have not acknowledged their authority were sinners, that it was their right and duty to make war upon them, wherever they could be found, and make slaves of all they take as prisoners, and that every Musselman (Muslim) who should be slain in battle was sure to go to paradise"
Not much has changed in 200 years.
It’s possible of course that (tin foil conspiracy hat donned for a moment) that Muslims, Commies and other enemies of the West are useful tools themselves. Any agenda that weakens us serves the overall purpose.
One thing I do believe is, if world leaders have been promoting the decline of the West in this manner, they have been very misguided and foolish. As you point out, Islam has irrational beliefs along with a desire to nuke Israel off the face of the earth. Nothing short of doing the same to adherents of that so-called religion will change that. It brings us right back to the doomsday scenario they supposedly want to avert.