Besides the rather obvious remark that the system of govt we now live under is broken, I suggest that the break become even greater until it becomes so obvious that people are forced to take sides. Then they will either become violent or seek some more reasonable alternatives and solutions. As in personal growth so in politics, crisis is good for self-knowledge.
Leftists should threaten the Dems with not voting in the next round of elections unless they shift farther to the left. The demands should be as radical as possible, e.g., renouncing blanket support for Israel's policies, recognition of Iran's right to protect itself, universal healthcare, another raise in the minimum wage, etc.
Too many people are too comfy and apathetic in either their Republican anxiousness or their "sympathetic" Democratic anxiousness. We need to knock these people into the real world and see which way they fall when the shit hits the fan.
A voter strike simply echoes the majority will; that is, a majority of eleigible voters don't vote anyway. People seem to be blase about that fact. According to my crude calculations, for example, Bush received less percentage of votes than did Hitler. This might be a fact that's revisable, since I had no data on the percentage of eligible voters in Germany at the time.
The point of such research, though, is to show that we do not live in anything resembling a democracy, if that is supposed to mean where the leaders are voted in by a majority of the public.
My experience in electoral politics of the Leftist kind lends credence to the idea that even Democratic supporters--those with money and inluence--see the rabble as rabble. The kind of direction to the country believed in by these people is something akin to benevolent guidance since the rabble obviously can't even make it in real life so how can they be expected to make responsible political decisions?