I think not only can we do things, but we are obligated to. Cheering on from the sidelines or even worse offering platitudes like "I support your goals but not your methods" while offering no help or alternatives isn't really helping. If you support change, the do something about it. Call your local officials or congressmen. Donate money to political action committees. If you make peaceful change impossible, then violent change becomes inevitable. We might feel safe today while we're sipping lattes in our gentrified neighborhoods and tisk tisk on Reddit and hacker news, but that safety might be illusory.

The wave is coming. You can either help guide it safely to shore or get drowned by it.