I also don't doubt that there are fair numbers of kids who aren't out in the streets out of commitment to civil justice as much as out of a desire to be part of something, maybe get a, 'been-there-done-that' scar or a story or two. That's just the nature of youth and naivete.
But I am equally certain there is at least one organization, or possibly a loosely-coordinating network of organizations, that had plans on the shelf, training and indoctrination in the books, and foot soldiers ready to mobilize for this type of contingency. And as an organization, it looks like this:
And anytime there is a rift between segments of society, that opening will continue to be exploited to ensure that progress will be sacrificed to strife, until we get the political will to make the organization look like this: