On the issue of voting, this is not unbiblical in and of itself. Voting for unbiblical laws, such as abortion, is sinful, but the mere act of voting shouldn’t be considered so.
The Witnesses don’t believe in voting or any government service, as I’m sure you’re aware of. Most of their beliefs I feel are personal decisions that as Witnesses they choose to uphold. However, I don’t believe that their teachings on such things as not voting and choosing not to recite the Pledge of Allegiance have any basis in Scripture. I know they feel that since Satan is currently ruling this present system of things, that all nations and governments are by default, under his influence. This I believe, is one of the main driving forces behind their teachings on separating themselves from any government service or show of support.
However, in Scripture you find a different point of view. Look at Romans 13: 1-6,
> Let every person be subject to the governing authorities. For there is no authority except from God, and those that exist have been instituted by God. 2 Therefore he who resists the authorities resists what God has appointed, and those who resist will incur judgment. 3 For rulers are not a terror to good conduct, but to bad. Would you have no fear of him who is in authority? Then do what is good, and you will receive his approval, 4 for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain; he is the servant of God to execute his wrath on the wrongdoer. 5 Therefore one must be subject, not only to avoid God’s wrath but also for the sake of conscience. 6 For the same reason you also pay taxes, for the authorities are ministers of God, attending to this very thing. 7 Pay all of them their dues, taxes to whom taxes are due, revenue to whom revenue is due, **respect to whom respect is due, honor to whom honor is due.**
Paul was well aware that secular governments and authorities were not put in place to oppose and persecute their people. Naturally, history can show that there has been no shortage of evil rulers and governments who have enslaved and murdered their own citizens. However, he knew that governments and people of authority were going to be needed to help guide and provide for the people. This is why it is important to vote and work hard to ensure that our own government continues to uphold the truths and principles on which it was founded.
I find the approach that the Witnesses hold to, of choosing to avoid any form of government or political involvement is to invite disaster.
However, I know many who still believe that Armageddon is very near and the teachings of the Society still promote this. I’ve heard my in-laws mention this view several times. They always say “None of this will matter in the new system.” Unfortunately, it matters now.