3rdgen:
Obama didn't offer real revolutionary change, neither would HRC. But Obama did get the economy more on the right course (unemployment is very low) and did do some good.
What the choice is between is a continuation of existing policies (HRC) or Trump. The women marched against Trump because it was evident for a lot of us how bad he would be --- guess what, he has actually EXCEEDED my worst expectations. Take this story:

Is this worth protesting?
I know, I know: The women could not protest that at the womens march because it had not yet happened. But many of us knew something like this would happen, or could happen, under Trump. Guess what? It is now becoming a reality.
Trump just gave ISIS their biggest propaganda victory ever. He did not make the US more safe but less.
We are about a week in. We now know the US tax payers are going to pay for his stupid wall, that he does not have a plan for ISIS (he just asked the pentagon to come up with one so there..), he has royally pissed of mexico (and I don't only mean just insulting them; he is threatening mexico in a major way) and the chinese are saying war is now a practical reality (yep, that also happened).
This comes on top of all the other trump bullshit, like being anti-vaxer and climate change denier...
Between those things I think it is possible to find something to protest..