That was such a well thought analysis - not. It sounded like a rant to me. Who fought the Russians in Afghanistan, yep the Taliban- backed by the west. Who backed Saddam Hussein? Remember Oliver North anyone?
As has been pointed out, Iran will not be allowed to go nuclear, end of. Russia does not have the military might to do much nowadays, look at Chechnya, that took huge manpower, and cost a lot of lives.
If the USA and other western nations wanted to help out the deserving poor in oppressed nations there are candidates that are far easier to help out ,such as Zimbabwe or Sudan.