Can we legislate morality to stop murder, teenage pregnancies, and drug addiction?

Les teaches that the Christian community often wants to think it can legislate decent morality—laws that would cause people to stop murder, teenage pregnancies, and drug addiction. But you cannot do it. The reason is that mankind, in the flesh, is enmity against God, is a total rebel, and is not subject to the law of God, neither indeed can be. People have no fear of God because they have no comprehension of who God is; they ignore Him and push Him out of their thinking. The drug war illustrates this: government cannot stop the drugs, and they will never stop them until people stop wanting to use them. If people stopped using drugs, the whole drug business would fall apart, but Scripture indicates that is not going to happen in this present state.