The whole point of this post is to take a conversation from the comments thread of another blog over here. So, Petrina Fadel, if you'd care to extend our earlier exchange, I'll do my best to keep up. (I think you're probably able to post more than I am at the moment, judging from Amy's blog thread, so bear with me. It's a stressful time for me, work-wise, as you can guess from how often I've posted in October.)
In the interests of full disclosure (and perhaps risking my sons' privacy) we didn't have our boys circumcised. However, I'm not a Jew, so God didn't command for MY people to be circumcised. So there's that, for one.
But also, if I understand you correctly, you suggest that it is against official Catholic teaching to have one's children circumcised. I disagree. I think it's something about which Catholics are allowed to disagree. You've made a case - based on the fact that a Pope spoke negatively about circumcision at the Council of Florence (which I didn't know, so thank you); on the fact that the Catechism includes a proscription of gratuitous amputations and the AAP calls circumcision an "amputation; and on the fact that Paul says certain negative things about circumcision. I'm not saying that your case is bad, I'm just pointing out that its pertinence to the issue of whether contemporary Catholics should circumcise rests on interpretive leaps made by you.
Which is fine. Other people could argue other things -- and have, in (among other places) Catholic Answers, hardly a bastion of liberal cafeteria Catholicism. They could point to the fact that it makes no sense to believe that God commanded the chosen people to do something that was intrinsically a mutilation, let alone a violation of moral or natural law. Over at the other blog, another commenter and I both mentioned Paul's socio-cultural reasons for saying what he did about circumcision. And I could point to things that popes have said, especially post V2, about the dangers of supersessionism.
We could arrive at different conclusions, is what I'm saying. But my contention is that it's not (excuse the unfortunate pun) cut-and-dried, the way you initially seemed to make it out to be.