In the 90's, the dominant counterculture was some version of leftism. On the fringes, there was vitriol and anger towards the 'polite' and publicly 'respectable' dominant culture of the time - some version of evangelical and catholic right-wing ideology. Atheism was still edgy. Raging against an undefinable machine had artistic meaning.
We can throw in as many other causal factors as we want in an attempt to explain the current socio-political state of the country, but we can't really deny that it looks as if the new counterculture exists somewhere on the right.
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I remember the days when John Stewart was edgy. Now, you'd be hard pressed to find a mainstream comedian, who focuses on politics (Colbert, Noah, etc.), that isn't clearly center-left. The coastal, cosmopolitan, affluent, center-left culture is practically a monolithic gate keeper of what is and isn't 'respectable'.