I don’t think Obama is worried. Conservatives are way to docile when it comes to protests. The left had been practicing for 40 years and pretty much mastered the art of being annoying.
Actually they should be extremely worried. The right never protests, ever. They seethe silently and then vote to change things.
When things get bad enough for the right to take to the streets even in their well behaved protest then thing are really heating up and a huge movement is forming. If dems keep up the way they are going, the direction of the right's anger will be the huge question.
The DHS move was very stupid at this time because now it is not just the tax burden that has been thrown in Americas faces it now is going to become a question of freedom and nobody in the older generations can miss the dangers of a government taking these type of actions, too reminiscent of dictators and communist around the world.
They are giving reasons for the people or states to stand up and begin a fight against the government. You need to be power hungry or brain dead to be a dem.