My opinion...

The human body is made for a purpose. The urethra and vagina has labia to protect it from foreign bodies and infection. We have eyelids to prevent infections. Nose and ear hairs might seem unsightly but they're there for a reason!!! The foreskin protects the penis and urethra. PROTECTS!

Hmm, so it reduces some cancers? HEY! Lets chop our breasts off to reduce breast cancer? Quick, chop my head off, I don't want brain cancer... !
Actually there are a number of woman who have removed their breasts so that they won't get breast cancer