"Well if you say something and I disagree then I'm entitled to defend my opinion aren't I?" he says. Sure you are buddy, but then when other people defend theirs back, it doesn't automatically mean it's now an argument and it's that person's fault for not respecting your right to defend your opinion. And did it occur to you that there was no need to "defend your opinion" anyway, because nobody was attacking it, and perhaps that the person was just trying to tell you how they felt and that the appropriate response might've been to LISTEN and understand, rather than try to shut them up by repeated protestations of your total innocence and blamelessness, because they're expressing a feeling of not being happy and implying that you just might, possibly, have played a small part in that?
It's always the same - he never FORCES anyone to do anything, God forbid! If we ended up not doing anything we wanted to do just because we got fed up of trying to persuade him that running around in a wild goose chase on the off chance that there might be something really awesome in this random direction he's taking wasn't such a good idea because everything we said he countered with a very vehement declaration that the other place was 'terrible' (i.e. didn't match his vision of a perfect place), that we 'might as well' continue looking now and it's 'not worth' going 'all the way back' (8km - about 5 mins in the car) to the place we're talking about, then it's entirely OUR fault for not being insistent enough. Even though, if we had been insistent enough, he would've then said we were being pushy and aggressive and forceful and ganging up on him.
He also takes absence of criticism as absence of flaws in himself - rather than, as is often the case, it's actually confirmation of it. As in, if only one person tells him he's very pushy and touchy and can be inconsiderate of other's feelings, then he sees it as just this one person's problem - nothing on earth will get him to speculate as to whether it's more likely that that one person is just the one person in the many he knows who is willing to run the gauntlet of his touchiness and defensiveness to actually raise the subject with him, whilst everyone else can't be bothered and so just suffers in silence, hoping to just take him in small doses.