Actually, all faiths disagree with other faiths. Catholic theology disagrees with Protestant theology. Christian theology in its many variations disagrees with Jewish theology. Jewish theology disagrees within itself. Christian theology disagrees even more within itself--witness the 100 or so denominations, sects, and cults.
Christian schisms did not arise from love; hatred has always been part of the vested interests of the clergy. Witness the violent suppression of "heretics".
Christian schisms did not arise from love
You are wrong. CHRISTians follow CHRIST and His teachings. Christ said, "The greatest commandment is LOVE'. No greater love is there but when Jesus willingly died for ALL our sins and rose again and defeated death - so we can live with HIM eternally for those that believe.
Being an evo, you don't believe this; therefore, no idea of Jesus' LOVE. The foundation of Christianity is LOVE - Jesus is LOVE.