What makes you think that people want to be in the streets protesting? Did not it occur to you that most of them actually like this system because it gives them what they want: bread and circuses? And what does you revolutionary bunch offer to these would be protestors: personal sacrifice in the name of some abstract ideas they do not even comprehend clearly, and uncertainty of the outcome of that protest?
The Ukrainians did not protest an "oppressive regime" - for if that was what bothered them, they plenty of opportunities since Stalin. They protested because the system that provided them with bread and circuses collapsed and the bottom fell of their daily lives. People rebelled because they saw no future in Ukraine - the only real opportunity was either sex work (if you were a woman) or hard dangerous or menial work nobody else wanted (if were a man) west of the border. But even that bleak condition continued unprotected for a while - the protest erupted only as a result of well organized and paid with Western money push.
So the popular will, window of opportunity and an effective push for a protest action are what makes all the difference in the world. The US has neither and is unlikely to have all three any time soon.
Wojtek