About two years ago I was becoming more and more uptight over what I considered political tyranny both in our dear USA as well as around the world. By tyranny I means such things as us increasingly becoming a police state, the infringing of privacy rights, injustices of the powerful against the weak, etc, etc. God helped me to get over being uptight about all this with this verse.
"For the rod of the wicked shall not rest upon the lot of the righteous..." Psalm 125:3a
The "rod of the wicked" equals tyranny.
The lot [or inheritance] of the righteous will not have this resting upon them. So I began to see the best way that I can serve my country and this world is to convert the people to Christ. Get them righteous and the tyranny of the wicked will fall off of them.
Over and over we see God judging wicked nations with tyranny; so reads history and the Bible. And over and over we see freedoms coming to righteous people. So I could join every political revolution in the book, but as long as we as a people are wicked, all my campaigns will be in vain, for I will be fighting against God's judgment. But get the people seeking God and God will liberate the people in His time. I'm not being a fatalist, but rather saying that the best use of my time as a Christian (who has found true freedom) is to be about kingdom work -- God's kingdom.