I don't know if this has been mentioned or not, but what about talking to your pediatrician? The pediatrician I chose for my children refused to do cosmetic procedures on children, so he would not perform routine infant circumcision. At least this is what someone told me when I was looking for a pediatrician in my area. I never actually talked to him about it as I had a girl, but he was also willing to work with parents who choose not to vaccinate, and who had homebirths. So maybe finding a doctor who shares your opinions might help.
Even if you do have a girl, I think this issue is worth working out. I'm not sure I ever worked it out with my partner, honestly. When we were having our first, I said I was opposed to circumcision, he said he was in favor of it. He said if I really felt strongly about it, he'd go with my opinion. I said if he really felt strongly about it, I'd go with his opinion. We had a girl. Four years later, I was pregnant again, and much stronger in my anti-circumcision feeling. Early on in my pregnancy, my husband said something to the effect of, "I guess we're going to have to have the circumcision debate again" and I said, "No debate, we're not doing it." Of course that got his hackles up and he started pushing the "we need to discuss all the issues". I told him that our daughter's pediatrician didn't even perform them and a few other things. My feeling was we decided it the last time, and this time it really IS important to me. He didn't really push it after that, but maybe it got swept under the lets-hope-it-goes-away rug. Ultimately, though, he is reasonable and I think he would have realized that he was in part reacting based on emotion, the emotion of knowing that it had been done to him but that doesn't mean it should be done to other people.
And if it was truly important to him, he could educate himself on the matter, but he was the type to say, "Oh, just read it and let me know, whatever you think is best" type. At the same time, he also wants me to do the research in the way he wants it, double blind studies with lots of data that support my idea, and nothing whatsoever what he thinks is fringe. That was his complaint about the immunization issue. No, if he wants that data, than he needs to seek it out. And he needs to understand the politics behind it all and understand just why what he wants might not exist.
Absolutely with circumcision, first do no harm. If he is not willing to read anything you've written, and he won't discuss his reasoning with you or provide you with anything to make his own case, but absolutely insists on his way, that is disrespectful to you and your children, and indicates potential problems in other areas. So just trying to work this out might be beneficial to your marriage and how you interact with each other. JMO.