That is hard to argue with. In any mob, the loudest and most extreme voice tends to take charge.
Then there are lone, disaffected guys like McVeigh that see the siege at Waco and the Battle of Ruby Ridge to be the last straw, perpetrated by the same conspirators that kept Tim out of th Special Forces and wearing a nifty Special beret.
Either way, McCain and Palin need to tone this down or it will backfire on them, and the rest of the country as well.