I'm going to disagree with part of what you said here shoo. I'll agree that the outcome of this vote really had nothing to do with facebook, etc, anymore than it really has to do with signs in people's yards - those things don't change people's opinions about issues (or candidates) they only serve to change people's opinions about the person who posted/placed the sign (unfortunately) because there is no discussion and in most cases, no relationship.
I understand and honestly sometimes share your disdain for "Christianity" (meaning the most public and vocal face of the church - which seems to be quite political), but to call them incapable of education is silly (and honestly, the whole notion that a discussion with someone who is a Christian is you educating them b/c of their ignorance rather than discussing opposing viewpoints is a bit condescending, although I will acknowledge that in the case of this amendment, there was a lot of ignorance of its scope and implications). But there has been a breakdown of civil disagreement in our society, so good conversations rarely happen. When faced with a conversation of "homosexuality is evil" v. "you're a bigot," there won't be much understanding. It puts both parties on the defensive and nothing constructive can come of it. But when you listen to others (and not just wait for a turn to tell them why you're right), real conversation can happen. We've seen on this thread that DeaconSlim had a good conversation with his family (and dad in particular) that resulted in a change of heart. I had several conversation with folks who are very conservative, both politically and theologically, who reconsidered their position on the amendment.
The frustrating thing about politics these days is that we treat each election like a sporting event where we just want our side to win. I can't tell you how many posts I saw yesterday comparing this to a UNC/Duke game, etc. It breaks down actual discussion because when our team loses, it strangely says something about our own value. And healthy discussion can't happen in that circumstance (on any side - religious or not).
Just to pump my wife up b/c she's awesome, i think she wrote something pretty awesome about this topic:
Why I hate Election Years