Interesting. In a mass movement like this, there are always going to be some nuts. I mean, you don't really even need a mass movement to find those, just check your nearest shopping center. If you can find a crowd, you can find some nuts.
The bigger something like this becomes, the more it poses a threat to the status quo. As this happens, you can bet you'll see all sorts of nuts dredged up and other provocations. Whatever it takes to discredit and diminish it.
As far as class warfare goes, my impression is that this mass demonstration phenomenon is a response to class warfare - the class warfare that has been unleashed on them - that is, on all of us.