I saw an article on this today too. This could get very ugly very quickly. I think it will depend on how the feds handle the situation. If they start beating protesters it may very well start a war. La Raza is another concern. The picture in your article shows members in a semi military looking uniform and the bandannas bring to mind the look of gang bangers. It is a bit of a stereo type but with emotions on edge it just seems inciting.
La Raza is known for being radical, not a good mix. I also expect to see states start taking measures to protect themselves. If the federal government starts going after the states we may well see citizens showing up in mass to back the states.