It’s almost as if you have two options:
1. I disagree with my opponent's position, and therefore I shall oppose it.
2. I disagree with my opponent's position, and therefore I believe he has sex with goats.
The second option is ever so satisfying to the lone iconoclast: the fact that the mainstream media does not report the rumors about midnight goat-deliveries confirms your worldview. And the faintest whiff of goatiness whets your enthusiasm, confirms your juicy suspicions.
But of course the sheeple won’t believe it - which just proves how smart you are.
To understand the workings of American politics, you have to understand this fundamental law: Conservatives think liberals are stupid. Liberals think conservatives are evil.