The Pharisee thanked God that he was, oh, such a morally superior person. Jesus states that it was the tax collector who went home justified before God. Christians divorce at a rate which is just about commensurate with the secular world. There is a substantial abortion rate among professing Christians. It is commonplace for Christian kids to experiment with drugs.
Christians have extramarital affairs at an alarming rate.
The world is watching our actions, which speak far more loudly than our words. When they see so many Christians living such un-Christian lives, they are unlikely to want to commit their lives to Jesus, and much less likely to be influenced by Christian political agendas. They are believers only, but not the only believers. They place their confidence in Messiah Jesus, not in flesh and blood or palpable organizations. However, he does not ask the Roman authorities to close down all the strip joints, adult book stores and gambling casinos.