Yes, but they tend to lose their arguments fairly quickly, and it's usually mere Devil's Advocacy, for the principle of the thing. Which is of course a necessary and fun exercise, but not one that is actually problematic in community cohesion terms.
I would not be so optimistic. I'm not a huge proponent of the "Democratic way", but I don't mind it and think there are decent arguments for it, including instrumental ethical ones. (I believe that in a better universe people should only have the right to demand things from their administration without dictating who in particular would hold office, but I understand that it helps diminish abuse of power; on the other hand, opponents of democracy bemoan other kinds of such abuse, which they say democracy facilitates... all that, and I haven't even...
I have found this most wonderful (if fairly lengthy) article, and thought you would enjoy having it brought to your attention.
It is so good, I think we should include it among the references in the "Politics is the Mind Killer" wiki page. But, before that, I submit it to you, and ask you: is there anything in this article that would warrant its exclusion from this site? I mean, besides the fact that it is about politics, and written by a notorious Social-democrat (And is that in itself grounds for exclusion?).