Tin foil hat time. Any chance the confrontations were organized to cause violence against the illegals making a cause celebre for the Regime to go martial law on anti amnesty citizens?
While the idea of martial law may be bit of a stretch, I agree with your premise.
Liberals always up the rhetoric and push the line on confrontation in the hope that someone else will go violent and it will be captured on film to help their cause.
They burn flags, hurl feces and more, as we saw with the Occupy dregs and nary a negative word is heard from the media. But let one patriot step up and take the flag out of their hand or restrain them from breaking a window and the story of right wing violence would play on an endless loop for weeks.