Do you know the Abrahamic faith and blood line?

People if we understand Prophet Abraham and the accepted sacrifice that was accepted by God. We people in the Abrahamic we shouldn't be at war with each other. If we truly understand the sacrifice we can see that God blessed his bloodline for mankind to worship Him. It was already decided Prophet Musa (pbuh) was sent to The Children of Isreal, (pbuh)Isa Jesus Christ was sent to the Chritians and Prophet Muhammad (pbuh) was sent to the Muslim ummah. Can't we all see that due to Prophet Abraham he brought us the concept of the worship and the unity of God. Without him religion we would have no religion. Why do we Fight, Kill, AND Hate Each other? All divine people talked about and lived in peace. I don't know if people are aware even when my Prophet who I chose lived in the city of Medina lived with Jews and Christians in peace for years. We are all prone to fight because everyone wants to be The right religion. To me there is no such thing. My Lord lets me know 2 important facts To worship Him and Him alone and one day I will be standing in front of Him to be judged by him on The Day of Judgment. This question is only for my open minded people. Why do we in religion fight and hate each other when we are taught to love each other and not to hate one another. Anyone that worships there Lord is not only right but you are following a great path. It doesn't matter the religion at this point its all about the Heart and the Will. Peace.....