I don't agree with the practice of female circumcision. I think its funny that people say women who have been circumcised can not enjoy sex, but if you ask them most of them say that they have very satisfying sex lives and do enjoy sex. One woman said that these women were just delusional and did not know what real what sex was supposed to feel like and just imagined that they enjoyed sex. How could she know? If she isn't circumcised then how does she or any other woman who likes to judge know what they feel? My friend has been circumcised and she can still have orgasms (at least that what she says).
If you are talking about the removal of the clitoris your friend is wrong. Anatomically it has a purpose and it is the most sensitive part of a female's reproductive organs. It is the equivalent of the male penis. Removing it is another way in which to control a woman's sexuality.