Reference Evidences for the planned article Evaluating Circumcision
Brit Milah
Obsession of Jews with male circumcision to the point of even circumcising the dead body of the baby who died before getting circumcised by them:
According to Halacha, a baby who dies before they had time to circumcise him must be circumcised before burial. Several reasons were given for this commandment. (Copied from Wikipedia post on Brit Milah linked above)
Reiner, Rami (2022). "A baby boy who dies before reaching eight [days] is circumcised with a flint or reed at his grave" (Shulḥan 'Arukh, Yoreh De'ah 263:5): From Women's Custom to Rabbinic Law". Journal of the Goldstein-Goren International Center for Jewish Thought. Retrieved 3 January 2023. (Copied from Wikipedia post on Brit Milah linked above)
Also see:
Post-mortem Naming and Circumcision for a Stillbirth (Leaving the foreskin on is “disgraceful and shameful for the child,” so we don’t want the child to suffer the shame of being buried uncircumcised.)