The issue here would be more serious if circimcision were really anything more than a cosmetic change. The use of the word 'cosmetic' will no doubt outrage all the anti-circumcision blowhards out there, but that comes with the territory. Plenty of circumcised men, myself included, are completely happy with the way things are and have no problem with it. I, for one, appreciate the hygene advantage. Also, growing up in an area where most every guy was circumcised, the intact guys would often suffer the snickering and ridicule of the girls, even up through college. To this day I meet women that claim not to like foreskins. Now, this is obviously anecdotal and in no way means this is the greater preferance of women, just my experience.
If cicrcumcision actually impaired a normal and health sex life, then I wouldn't find the religious freedom argument valid. But, in this case, we're really just talking about a piece of skin. The anti-circumcision literature balks at this concept - they bestow all kind of magical properties on the foreskin, and I think a lot of circumcised guys that are unhappy with their penises or sexual performance tend to latch onto this explantion as a way of placing blame for their issues. Again, that's just my theory, not meant to be applied to anybody personally.
Also, so far as the cultural origins of circumcision - it is related to hot, sandy climates. Apparently there is this horrible condition called balentitus (?), or something that effect, which is common in dry climates where lots of water for washing and scrubbing isn't available. Basically, stuff gets trapped in there, including grit and sand, creates small abbrasions in the thinner skin, and allows infection and swelling to fester in an area that's difficult to keep clean and dry. Removing the foreskin basically eliminated the problem. This was mentioned to me in conversation long ago by a friend that was completing a doctorate in theology, so I'm pretty sure it's accurate.
Also, a quick google search about circumcision and AIDS in South Africa will reveal that its being hailed as one of the best chances for curbing the HIV infection rates in undeveloped nations. Removing the foreskin has been show to seriously reduce the contraction rates for STDs, including viruses like HIV. So, while there's probably no serious medical benefit for people living in places like the US, in poorer nations with high disease rates, it could be of serious benefit to a lot of people.
Also, I have many, many Jewish friends, and not one has ever complained about being circumcised or believed that they were violated by their parents. To them, it's just part of being Jewish, both cultural and religious, and they don't see it as a big deal. One has mentioned to me specifically that he thinks all the wild anti-circumcision stuff on the internet is rather entertaining. I personally don't understand it. All these men on the interenet are infuriated by the idea of male circumcision, but have little to say about all the girls all over the world that are subjected female circumcision, an ivasive, painful, and debilitating practice that is forcefully performed on girls, often at puberty. Now that's a brutal practice and a human rights issue - but basically the penis obsession takes over and the guys just use the anti-circ crusade as a springboard to bitch about being circumcised themselves and all the problems they think it's caused.
Again, that's not aimed at anybody here, just the impression I've formed of the anti-circ thing, having investigated it on other occasions.