He makes it sound like the prequels were universally disliked when it's just a vocal minority who were really upset by them.
True, that was implied, but you state "vocal minority" as if it's a fact. Glass houses and all that.
The whole "Why doesn't Lucas listen to us massive hordes of outraged audience members?" thing.
Yeah, because SW would have been just as much of a phenomenon without an audience.

btw, why do the vocal defenders of the changes try to make like the masses who don't (seem to) care are on their side? Is their position so weak that it needs to be propped up with apathy?
If the original versions were released instead, those people would still buy them.
Well my friend, it's because all six of you are standing together in the back of a cheering crowd of 700.
Keep it up. Without marginalizing and insulting who you're arguing against, what exactly are you saying?
Funny how the desire for a choice of the theatricals always gets swept under the rug.