This is kind of a natural out growth of the "ends justify the means" philosophy.
Since people replying can't seem to read critically let me clarify. I didn't say ALL or most protests haven't been peaceable. Because you can cite peaceful ones does not mean that there is not a problem because we are clearly having non-peaceful ones too!
do you see the pattern? this is another arab spring ( or color revolution if you prefer ) but this time in the US
seriously, when will the people understand what is really happening?
the aristocracies are trying to reassert their "divine" rights upon the ignorant masses
That's just ignorance. There are people showing up to protest something with the intention of being violent. They weren't there by accident, or random luck. They (those few violent ones) were protestors who had forgotten how to be peaceable.
This event had a set of 10-12 agitators.
I'd say that sounds like more than 10-12, or those 10-12 had a whole lot more "peaceful" supporters supporting/cheering them in their criminal activities.
Additionally, in the age of camera phones and live streaming, the best place to fight/resist cops is in court and not the street. Your chances of success are far greater. I would hope UC Berkeley students would know this.