Your fight is righteous and courageous, but you are pushing against an insurmountable mountain of self-reinforced ignorance. It’s a battle you can’t win. Through this post I could sense you see the futility of the effort, good intentioned though it may be. If you just shrug your shoulders and let them be, you won’t save the world (not that you could anyway), but you might find some peace of mind. The serenity prayer advises you to accept what you can’t change, and you can’t change stupid.