It depends on national political context. My own country is highly secularised, and politics here is well beyond saving for this reason (also corruption and other problems naturally associated with godlessness). I have disengaged from politics completely for these very reasons. To many people, this will sound defeatist. The way I see it is that there is (relatively) little happiness to be found in this life, and to try and save a world gone completely to hell is tilting at windmills. Instead, I try and purify my own life from godlessness and do whatever I can for my family and friends.