I don’t give a fuck about those “benefits” which have miniscule impact and can absolutely be achieved by means other than cutting a baby’s foreskin.
Adults can cut their dick off if they want, surely a lot of men would do it if those benefits are so impressive.
Parents should not have the freedom to mutilate their babies because they say so. Only if a doctor recommends it because of an actual disease (phimosis or whatever).
That is basic ethics. Don’t make unneeded permanent choices for a baby. If it is a decision that can easily wait until the baby is an adult, it is evil to make it for them.