In the past Christianity has had a strong influence on American culture. That influence has grown much weaker and that fact is reflected in our laws.
Because humans are created in God’s image human life should be protected. Today abortion is legal and there is a movement to legalize suicide by the terminally ill.
God established marriage as a permanent union between a man and a woman. Almost all states have no fault divorce laws which make it easy to end a marriage and many of them allow marriage between two members of the same sex.