I just read through this thread and a few thoughts came to mind.
I believe that our sense of democratic freedom, symbolized by our right to vote is largely an illusion. This is not the freedom that Christ came to give us. Jesus challenged the Jews illusions of their freedom (see Jn 8:31) They argued with him, saying, We are Abrahams descendents and we have never been slaves of anyone. How can you say that we shall be set free?
Jesus was talking about the bondage of the heart, the will, and the spirit. Thats where true freedom begins. We are called to be partners with Christ in setting the captives free - by a spiritual process not by political process.
Those who are not truly born from above are slaves to this world, ie, dependent on this world like their religious or political leaders, or some other voice of society.
The preacher who says, You MUST vote, is one of those other voices who is trying to hold his sheep in bondage to his authority. He is robbing his sheep of the freedom to follow the voice of the Spirit.
I recently had a vivid dream which gave a warning.
In the dream I saw a huge, bulky black plane fly over at a low altitude. The air rumbled with a deep thunderous sound as it flew past, and the people around me ducked down. Then moments later I noticed everyone around me whispering. I spoke in a normal voice, and was quickly warned that I must only whisper. I asked Who said?, and the woman said, mmm said, not giving a definite name. I asked, Does this person have authority to tell us all to whisper.
So I continued to talk out loud, and no one seemed to stop me, however they all kept on whispering, as if careful to obey this unseen authority, symbolized by the intimidating aircraft. I felt a little strange and self-conscience talking out loud, as if I was disobeying the norm - social voice of conscience. And yet, I felt free to continue.
In this revelatory experience I sensed something that went beyond words or experience: a warning from the Spirit: We must consider, WHO SAID? before we accept someones authority. For if we trace back through this chain of authority we may discover the Wizard of Oz someone who really had no authority at all.
It is not a merely a case of voting or not, but - who is the authority of our consciences man or Christ.
Christ has called us to change the world, and if we think that we do that by our vote, we are deluded.