Jesus invited everyone to follow him. Jesus was not about power and control. Jesus was not about doctrine or dogma. Jesus was about tolerance and healing. Jesus was about helping others in a humane way. 
The traditionalists use some quotes where Jesus used fear if they were sinful. I doudt they were historical. When you look more deeply, the theme of his message was very simply Caring, Healing, and Relationship with Him. In other words, Love. Jesus was ecumenical. He was a Jew who healed Samaritans and Atheists, Poor and Rich.
Why do we continue to fight with others? We are asked to treat others as we expect them to treat us.