You should crack open a Bible.The same reasons that Christians and Muslims follow the Jewish God.The Jewish God killed all of the first born of Egypt to punish the Pharoah for enslaving the Israelites.
Some of these were innocent babies, no more than a year old.
How can a loving God do this?
Was there no better punishment? In all of his grace and wisdom, baby murder was the most appropriate punishment?
Why not just kill the Pharoah?
Why do Jews follow such a bloody and aggressive God???
Christians do not follow the Jewish god, we wouldn't know which one to follow.They had many.
Even Bible mentions other gods that the early Hebrews may have worshipped.
However, Jews worship only one God.
you are getting mired in semantics