To this difficult question, there is no answer. And yet, God gives an answer to His children: Trust God. His reasons, thoughts and intents are infinitely beyond human capacity to understand. Will we accept the fact that God owes us no explanation for what He allows?
Only the Gospel of Jesus has the answers to the world's problems. Politics is a sideshow that Satan is directing to distract our attention elsewhere. Ignore the distraction and join the real program: Christ's work on earth through the community of genuine believers.
When the big, bad, and nasty happens in society around him, how does the Christian respond? What is the Gospel standard that helps him know how to deal with political unrest? He operates under a Royal Law that will define his actions and reactions, helping to prepare others for a Better World.
So...we say we are citizens of the Heavenly Kingdom. How much should we be involved with the affairs that govern this country? Is it okay to have a favored political candidate? Do we have rights? A look at examples and explicit commands from the Bible to help us live as citizens of a Better World.
Why not? Well...can a Christian serve without breaching the Biblical principle of the unequal yoke? without resisting evil? without blurring the line between church and state? without taking revenge? The Christian has a higher calling than that of a juror: to be an ambassador of peace and love.