I'm not supporting or vilifying anyone. I've seen many instances where the police were out of line and acknowledged it.
I have to be objective though. I watched this video about 15 times and have a hard time determining who is doing what as it was so chaotic. The video does not show what happened prior to this and there is no context.
Notice that of the two ladies who got pepper sprayed, one cradled her head and was quiet, which is the typical reaction I see in these types of videos. The other was an absolute drama queen about it. I think she wanted to get pepper sprayed, most likely to make some sort of statement, and exaggerated her pain to help drive the point home that the cops are evil. And they often are, but I think alot of the protestors deliberately go out and make trouble and ask to get tasered or pepper sprayed.