[Dracophoenix]

There are medical reasons for the removal of foreskins such as phimosis [1]. Inasmuch as I would agree that religious justifications for circumcision are the ramblings of a cargo cult, circumcision itself was and is (for now at least) not without value.

[1] https://en.m.wikipedia.org/wiki/Phimosis

[ghuin]

There also could be medical reasons for the removal of arms. That doesn't mean parents should be allowed to remove the arms of their children as they are born.

[Dracophoenix]

If there's a medical reason to amputate an arm and if it would be appropriate to attend to it immediately after birth so that no long-term complications arise from a delay in action, a parent should acquiesce to it. If parents shouldn't make that decision then who should?