You're saying we're pissed at iggy because he isn't being a good little brainwashed soldier and just hating you all indiscriminately because that's the way it is: us vs. them.

That's not it. Iggy can be friends with you if he likes. Hell, I'm even friendly to some of you. But I don't think he should betray the individual relationships he has with members of the Insurgency by picking on Halo or saying the Insurgents are all part of one big circle jerk. It's a subtle difference, but it's definitely there. He betrayed all the bananas, but not the bunch if that makes sense.