Are you aware that just as your silence gives consent to wedding vows, it gives consent to other things? It is called "the rule of tacit admission." Did you know if there are evils in your community and you are silent, you become an accessory to them?
Is it scriptural to not care about what kind of country we are leaving to our posterity? Proverbs 13:22 states "A good man leaveth an inheritance to his children's children." And even if we can't turn the culture around, shouldn't we at least try?