Yes, but considering that the numbers are very small, I'm not it's of more than local importance -- sorta like the "Republic of Texas" folks from a few years back.
FR is a great place, but (like DU) I seriously doubt that it represents anything close to mainstream political views, such as they are.
I'm more inclined to believe that the mainstream will end up rejecting both extremes, and realigning to a centrist party. This election, or the next one, is probably the last gasp of the hideous primary mess that has metastasized over the last 40 years or so.
Got to 2012 and have a charismatic conservative sweep the republican primaries on a platform of massive deportation, nuclear attack against the country found plotting against us, etc.
The left and their fellow travelers in the media, academia, Hollywood will kick up an outrage, violence will be in the mix. Threats will be made if this conservative is elected against Saint Hillary and if he, or she, wins half the country will refuse to recognize the election.
This scenario is sliding from possible to probable with each passing day.