Let's add some nuance: Circumcision, for (orthodox) Jews, is one of the most fundamental conditions for identification and belonging to that group. Leaving a Jewish male baby uncircumcised would most likely lead to feelings of alienation and isolation later on in life – feelings which could have significant psychological impact and could largely negate the benefits one gains from strong communal structures. Regardles…
The same is true for female genital mutilation in certain Islamic cultures. I still don't think "it's culturally important" is a reasonable defense, and I doubt you do either. And just to cut off this objection, the vast majority of female circumcision involves removal of the clitoral hood, which is (mutatis mutandis) anatomically equivalent to removal of the foreskin and has similar effects and risks.
Most FGM is type II
https://en.m.wikipedia.org/wiki/Female_genital_mutilation
Saying it has similar effects and risks is just handwaving.
And it is largely practiced in Africa, where tribal ritualistic bodily modification has remained a much bigger thing (compared to the rest of the world). Consider women who stretch their lips with disks to attract men etc.