I vote. I vote intelligently and conservatively. Now that I've cleared that up, let's look at this issue.
During Paul's time, Rome was in serious trouble—financially, politically, socially, and morally. One need only do a casual reading of Edward Gibbons' Decline and Fall of the Roman Empire to get a sense of the societal problems that existed. Yet the New Testament is woefully anemic in its treatment of the issues existing in the 1st Century. There is no call by the apostles for Christians to get out and vote or march in protests. None of it.
I’ve heard preachers cry from the pulpit, “A Christian who doesn’t vote isn’t a Christian!” They forget that the Christian’s citizenship is in heaven. (Phil 3:20) It slips their mind that we are reigning with Christ now.
If then you have been raised with Christ, seek the things that are above, where Christ is, seated at the right hand of God. Set your minds on things that are above, not on things that are on earth. For you have died, and your life is hidden with Christ in God. (Col 3:1-3)
The bible nowhere calls for Christians to become concerned with trying to make this world better. Christ told us to spread the gospel, to change hearts and lives. And in so doing, society becomes healthier. Being the salt of the earth preserves society, allowing it to function decently. But as long as godless men crowd the halls of power, it makes little difference who is in charge. Nor does the ideology matter. Virtually any form of government can work, even communism. The problem is the unchanged hearts of men in control. Voting for Jack just to unseat John isn't going to fulfill the prayer of Jesus, where earth and heaven are to be in union with one another. (Matt 6:10)
Christians should strive to set examples for the world by their Christ-like behavior. Once the gospel regenerates individual sinners, then the world can become a better place. It’s not going to become one simply by voting for who we think is the better candidate.
Jesus avoided the political spotlight (John 2:23-25), nor did He try and persuade His disciples to support any form of human government. He said that His kingdom was not of this world. (John 18:36) Paul told Christians to live within the laws of the land. (Rom 13:1) Christians are to “pray for kings and all who are in authority, so that we may lead a tranquil and quiet life in all godliness and dignity.” (1 Tim 2:2) He said that this was God’s desire, but not in order to make the world a better place, but to provide an environment conducive to bringing folks to Christ. (1 Tim 2:3, 4)
In the famous faith chapter of Hebrews 11, the writer speaks of many God-fearing people who shunned this world, preferring the world to come. None sought to make it better by marching, waving banners, and shouting for reform.
It’s a person’s right and privilege to vote, and we should strive to support the principles we believe in. But claiming that our salvation is in jeopardy if we don’t vote is rank extremism. If you're going to add a political agenda to God's salvation plan, you're inviting His curse. (Gal. 1:8, 9)