Absolutely correct. But I am just amazed at the number of Christians who actually think it is a 'sin' to vote or be involved politically in any manner. What they do not seem to grasp is that, if Christians don't get involved and try to pull the reins on this downward moral spiral, we have committed a sin of omission. It's the same as walking by a starving man and doing nothing to help him.
If you see a starving man on the side of the road, you have a moral obligation to help him. If you are an auto mechanic and you see a man on the side of the road with a brain tumor, you have no obligation to cut his head open and remove it.
Clearly, participation in a democratic process falls somewhere between these two extremes. I would contend, however, that the obligation of a Christian in this regard really only includes the following:
1. Publicly denouncing immoral laws, initiatives, etc. This includes warning the public at large about the dire consequences (if known) of these things.
2. Privately casting votes based on a conscious effort to promote Christian values.
Anything beyond these two -- short of engaging in actions to topple an illegitimate government -- is probably a waste of time. We have reached a point in this country where people are so f#%&ing stupid that promoting Christian values through rational discourse is damn near as pointless as having the auto mechanic remove the guy's brain tumor on the side of the road.