What would the point be?
LOL right how could something like this possibly be faked. It would take less than ten minutes in a graphics program to reproduce this to say whatever anyone wanted it to say.
There is crazy everywhere and it is easy to find. I don't doubt its is real and I don't doubt there is equal crazy shit all over the political spectrum. What matters is groups. Riots are an indication that there are more than just a few crazy ones out there.