For the sake of argument I intentionally ignored other things religion teaches, focusing only on the ceremony of baptisim as that is the question asked.
Baptisim is simply bringing your child into your religion formally, My parents could wave a feather over my head and say that I am not a member of the raven tribe and it's the same thing. If that was all there was to it (perhaps the raven tribe was simply my home tribe and we did this to welcome new children) then theres no real problem. Baptisim however causes people to treat you differently, the church benefits from you in some places and people in other religions suddenly recognise you as a target.
On a side note, I don't think I'd mind being a member of a tribe associated with the raven, ravens are cool.
Baptisim is simply bringing your child into your religion formally, My parents could wave a feather over my head and say that I am not a member of the raven tribe and it's the same thing. If that was all there was to it (perhaps the raven tribe was simply my home tribe and we did this to welcome new children) then theres no real problem. Baptisim however causes people to treat you differently, the church benefits from you in some places and people in other religions suddenly recognise you as a target.
On a side note, I don't think I'd mind being a member of a tribe associated with the raven, ravens are cool.
