I don't support genital mutilation for any reason except a pre-existing medical condition that warrants the removal of the foreskin (i.e. tumors, chronic infection, paraphimosis, etc.) People all over the world would never condone female circumcision (the removal of the clitoris), yet they would sanction the removal of the sensitive foreskin, the natural protection for the glans.
Removal of the foreskin causes a karotenoid layer to form over the glans, reducing sensitivity and making it prone to dryness and chaffing. Furthermore, I have seen more than adequate research put forward to suggest that infant circumcision neurologically alters the way a person perceives pain later in life. Circumcision cannot be performed with anaesthetic because of the risk it poses to the life of the infant, so it is done while they are fully conscious. I disagree when people say that babies are too young to remember it. If you had your foreskin chopped off, the pain would be so unimaginable that you too would block the memory, but the effects of it would drive deep into your subconscious and have untold effects for the rest of your life.
Aside from the relatively rare medical instances that require circumcision, there are only cultural and aesthetic reasons for this barbaric practice. I have long been averse to the non-medical professionals, such as rabbis, being allowed to circumcise babies outside of medical facilities. If any other adult were to try and mutilate a young boy, they would be called a pedophile and sent to jail, yet it's okay for someone to do it in the name of religion. Some cultural/religious customs should be made illegal, I don't care how much respect we afford their values in modern times. In any case, the removal of the foreskin on religious grounds stem from beliefs against masturbation, but clearly this doesn't stop young men from masturbating.
If people's foreskin is "gross", then there is a simple solution: learn to clean yourself. The problem is not the foreskin itself, but the matter that is trapped inside due to lack of proper cleaning. Even men who are circumcized who don't clean themselves adequately are going to stink. Teach your children proper hygiene, and if your partner is "gross" down there, you need to sit down and have a talk with them, regardless if they are uncircumcised or not. The solution is not cutting off a natural part of the male body that they are born with.
There is nothing "gross" about the human body you are born with.