Fine I can give you others why I despise God, beyond just its Christian roots. God formed three religions: Judaism, Christianity, and Islam. Each of these religions are strongly influenced on one another and all worship the same God, yet through his divine intervention God has set these three religions against each other, sowing pain, death, and despair.
It purposely made it so that there can never be peace until one religion is dominant over another, almost like some sort of social experiment.