No, even Christianity teaches that Judaism existed well before Christianity. In fact given that Christianity, even it's name is all based on the existance of Christ. The only way Judaism can be a perversion of Christianity is if nobody who lived in or around Israel existed before Christ. Since historical evidence says that isn't true then clearly judaism existed before Christianity.”Christianity did not come from judaism, rather judaism is a perversion of christianity”
- Ignatius Theophorus, AD 50 - 110
Christ was not the King of israel he was the King of the Jews and yes Christians came out of the israelite race, they were converts having been jewish first and then baptised into Christianity later, most likely by John while Christ was still alive. I'm not sure who was responsible for baptisims after Christ was crucified.”Christ is the king of israel and christians are the israelite race”
- Justin Martyr, AD 100 - 165