Sure. I participate quite frequently through calls, donations, and voting.
But I'm not sure if you've looked at the news lately... we're pretty far into "too late".
Non-violent protest movements have a great record of creating real, and sustained change. Whether that's in India, or the civil rights and gay rights and suffrage and abolition movements here, peaceful protest is a powerful way to send a message to the people in your governments what you and the rest of the people there support and expect of them.
It's a great way to meet folk, to get good energy, to get a message out, to get a little exercise and fresh air, and to support your causes in an effective and, relatively light time commitment manner.
The sad fact is, even most of the people who're sympathetic to democracy and human rights will do just about zero to protect or fight for them.
I don't really know what else to do though, so I keep trying!