Other wiser people than me have figured out how to change societies in defiance of established authority. Gandhi and King are the most famous, but there are more recent experts who's ideas we are incorporating into our movement, The Saners.
These approaches and strategies are proven, but not foolproof. You may want to check out the videos and publications of CANVAS—founded by the people who led the overthrow of Serbian dictator Milosevic.
Your concerns are well-founded. This is not easy, nor guaranteed. But we are going to try out best.
You can join at WeAreSaners.org/join