If you see mass protests, it'll go beyond the type that identifies with political labels. I also predict that it'll be embraced by the left more than the right.
I don't think you understand just how peeved the right-wing is exactly. I also have been talking to dyed in the wool liberals, who are starting to question the federal government's role in society.
That said, R-W ones are more likely to be peaceful, although much larger in number than left-wing protests. L-W protests will tend to be smaller, much more violent, and completely pointless.
The only way the R-W will start to get violent, is if police or L-W protesters start getting physical with them.