Z, are you referring to circumcision? How is it traumatic to the baby and how is it any different than circumcision at a hospital? The only difference is that at the brit, it's a ceremony and at the hospital, it's not. 50 % of male babies in the US get circumcised, and even though the number is at a decline, a lot of it isn't religious reasons.
I used to be pro-circumcision, but in more recent times, I've become more open to leaving it alone. I'm not sure what I'll do if I ever have a boy, but I'll probably ask what the father thinks. Most likely if the father is cut, he'll say that cutting it is the way to go, and if he's uncut, then he'll say not to cut it. I think that if the boy is taught to properly clean it, it should theoretically not be a problem. I disagree with those who say that being circumcised looses feeling, but you know it's really hard to compare these things. Even men can't really compare it...
Also, Thought. Comparing circumcision to polydactylism doesn't make any sense to me. It is a birth defect that needs surgery so that the person can have semi-functional hands, having a penis isn't a birth defect 0_o.