Circumcision follows the same moral rules as any medical intervention. If there's an acute indication that it is beneficial (i.e. fimosis) and the risks are deemed acceptable, sure go ahead.
Without indiciation, and given the risks, it is willful mutilation.
I think the only reason the law has been repealed in Germany, was because the alternative was people taking the knife to their boys outside the well-controlled environment where this is usually performed, and the risk for those boys involved skyrocketed, much as when abortion is illegal, the risk of an abortion increases.
Having been circumcised at age six, I can also say that I can not recommend this to anyone else. Masturbation is awkward, erections too tight, and probably slightly smaller than they would be of there was more skin in the area. Also, as with any amputation, there's the odd feeling of incompleteness and lack of wholeness.
I'm pretty sure you could reduce the interdigital fungal infections in everyone if you were to cut off the fourth toes at birth, with little side effects - we barely use our toes anyway. You could make it the small toe for girls, so they could wear prettier shoes. It would be about the same level of barbarism, with similar gains and disadvantages. I'd still miss my toes.