So?
But he did stand on a mountain telling people the same thing - albeit in a constructive manner.
I see people all the time who feel the need to carry such signs, distribute tracts, etc. in crowded places; this has not been unusual throughout history and as long as they're not violent it is their right to do so even though I may not agree with their message. As long as they're not violent it is their right to do so.
If one inflicts violence toward someone who has not been violent in the least they need to be AT THE LEAST reprimanded.
This really should not be difficult to understand.