Earlier quoted context omitted.
I don't know, but is it better than just getting up and leaving, since that doesn't really address the reach of the issues that confront the world today?
You don't have to leave if you don't want to. But your choices are to do nothing (which includes meaningless actions like online petitions) or get directly involved in politics. At this point I'd say there is literally no one to vote for, so if you want to change things you'll need to run yourself. If enough of us do that we could make a change. I see literally no other possibilities at this point.
Or to sign petitions, organize protests, do outreach in the community or other more subversive things. Why put limits on what one can do due to the perceived (lack of) value others may give it?