One of the problems with being an ideologue who abandons reality is that it makes for very, very strange bedfellows.
For example, Glenn Beck and Rush Limbaugh -- two guys who would rather soul kiss Michael Moore than be identified as lefties -- have both jumped on the antivax bandwagon. Beck is spouting long-debunked paranoid antivax rhetoric, and Limbaugh is, well, he's just being Limbaugh. He's long planted his flag in knee-jerk anti-government silliness, never admitting that maybe, just maybe, sometimes the government is right.
I don't know who this speaks worse for; the antivaxxers or the talk show bloviators.
In the end, though, we all lose. Because either way, this shows that nonsense doesn't have political boundaries. Once you step off that narrow path that is reality, you're surrounded by antireality in every direction. So it doesn't matter if you face left or right; you're still wrong.