@2 -- Likely a mix. When I went to High School (at that very school, by the way) I was fairly well informed. I had a pretty good grasp of history (especially African American history) as well as current events, so it wouldn't surprise me if a good portion of the student body knows what is going on. At the same time, I'm sure there are plenty who just want to join in a protest for the hell of it. This one is really not that complicated -- unlike, say, WTO. Trump really is an asshole, and he is about to be President. That is worth protesting.
They are protesting hate & discrimination which is no different from two months ago or yesterday, no different from last year or four years ago. You applaud them for standing up to something which exists no more than it did before, so why now?
It is a sign of how intellectually bankrupt and vacuous The Left is that you clowns look to Middle Schools kids skipping out of school for inspiration...
Please wait...
and remember to be decent to everyone all of the time.