If you and your girlfriend both vote on opposite sides of this then the tie breaker should be your son because he should learn that in life you have to eventually start making choices. Also if they rename the traveler Allah that is making fun of her religion which will only make the problem worse also tell her that the traveler in no way is supposed to be related to Allah. Tell her all the traveler is a ship that sacrificed itself to save the last city of humanity and uses technology to grant power to serve humanity for it's survival not at all like anything Allah would do. Then this is a question I hope you will reply to is she also hesitant to let him play because she is afraid he will become desensitized?