(1) You seem to regard the insurgency as a monolithic group, along the lines of the VC. It isn't.
(2) You have evidently never set foot there or actually looked at the wealth of data from either Afghanistan or Iraq on both the composition of various insurgent groups and their motivations. As such, you cannot differentiate between the Badr Corps and some criminal gang specializing in kidnapping for profit. You don't have to be working in some S-2 or G-2 slot to determine who and what the players are. Evidently that sort of work is too hard for you.
(3) The majority of combat over there is actually between the various paramilitaries themselves fighting for gain, or from those who regard the Iraqi military and police as a great impediment on their control of their various personal fiefdoms. While Americans troops are involved, they are nowhere near as heavily engaged as the local nationals, regardless of affiliation. The casualty figures bear witness to this.
(4) No insurgent group has faced an American unit of platoon strength or higher and survived intact, much less victorious. Even with the sort of foreign aid and support some of the insurgent groups receive and the experience and sophistication of some of these armed factions (former Republican Guard, Kurdish peshmerga, etc), those armed groups that do take on the American military do so by resorting to indirect means (IEDs, VBIEDs) than coming out in force.
(5) Most of the various insurgent groups are just criminals freed by Saddam in his infamous amnesty of 2002. There is nothing to admire about cowards. If they fought as the VC fought, there would be something to admire, but the majority are woefully inept in combat. Granted, there are individual fighters whose tenacity is to be respected, but very few are both skilled and resilient. I have yet to be truly, truly impressed by any of the enemy I have faced in the Middle East as worthy foes.
You've done your best to troll for reactions, but all you do is display your own abject ignorance. You certainly do have a high threshold for humiliation, since any normal human being would have died for shame long ago.