Yeah... what exactly would rioting accomplish? We've already got fairly large protests, we've got plenty of signalers coming from the population they're not happy with things. Larger protests with added violence would do... what? Damage some infrastructure that would do jack shit to the people causing the problem and likely massively inconvenience folks who are just trying to get by? It'd get plenty of people thrown in jail where they wouldn't be heard from for years (or ever), it'd cause superficial infrastructure damage to infrastructure the corrupted parts of the system basically have no interaction with. Maybe it'd have a modicum of political effect, but... the kinds of pressure rioting puts out is pressure we're kinda' already exerting, just without (as much of) the useless (and possibly counterproductive) waste of resources and lives.
It's... hard to see how violence would improve the situation. Kick Obama out (and how the hell are we going to do that to begin with?) and... then what? Who goes back into his place? How do you stop the situation from going right back to where the hell it was?
What exactly is throwing a tantrum going to accomplish? Yeah, we're pissed. Yeah, most of us are pissed. Yes, the people in power are aware of this. Undirected violence isn't likely to accomplish much, if anything, besides put a drain on people and things that might actually be directed toward beneficial change.
As for complacency... it seems to me it's less complacency than it is lack of options, and lack of a means for the wider population to determine what the right path forward is. Confusion and a dash of impotency. Quite fortunately, most people aren't yet willing and/or stupid enough to just lash out, but the lack of other means of influence does seem to have led to a sort of decision paralysis. S'a lot of people just kinda' going, "What the hell do we do?" and holding off on doing anything until they figure that one out. And, of course, for many (most) people, "What the hell do we do" has that rider, "And how am I going to feed my family while doing it", which massively complicates things.