I didn't imply any inherent supremacy on my part, but I still stand-by my comment of him being an absolute ass-hat. He can be against an encompassing representative democracy all the ding-dong day and that's fine but I'll still think he's an absolute ass-hat for thinking that, and I can be scared and/or upset that people think in a similar fashion.
Does that let you dismiss his beliefs? Because, it certainly looks like you're not even seriously considering why someone might have a different opinion from you. That looks an awful lot like inherent supremacy of your own opinion over that of others.
It's true that considering other opinions is important, but I think you're taking this line of thinking too far. There are some beliefs that are just wrong. It's a mistake to act like all opinions are necessarily equal.