There are plenty of vile things in Islam but this practice cannot be attributed to it. The majority of people who do it, happen to be Muslims but it is an African practice. Nothing in Islam forbids it and there have been clerics who have supported it throughout history but there is nothing that says it is mandatory.
The classic texts of the early church fathers were abhorant of sex in general, and the idea that women could want it or enjoy it was overtly sinful to them.
"FGM is found mostly within and adjacent to Muslim communities in Central-North Africa, but it is not required by Islam or practiced in most Muslim countries, and prevalence rates vary according to ethnicity, not religion.
[15] However, Muslim views are claimed
[16][17][18] to have permitted, justified, even encouraged FGM, over human history."
"
The Christian Bible (
New Testament) does not mention female circumcision (i.e. removal of
clitoral hood ) or
female genital mutilation (i.e. clitoridectomy and infibulation).
[89][90]
Christian authorities unanimously agree that FGM (i.e. clitoridectomy and infibulation) has no foundation in the religious texts of Christianity.
[91] Some Christian women, in Egypt, Kenya, Nigeria and Tanzania, however do undergo a procedure of genital mutilation believing it to be a religious requirement.
[91]
In Africa, missionaries have tried to discourage FGM (i.e. clitoridectomy and infibulation).
However, in some instances, in order to retain converts from other religions, they have either ignored or condoned the continuation of these practices. When in the 1930s European Christians tried to make opposition to FGM a condition of church membership and a test of loyalty, they provoked
a far-reaching campaign in colonial Kenya. Mary Nyangweso, a Kenyan researcher who studies "the interplay of religion, culture, and gender",
[92] states, "Christianity, it is important to stress, does not advocate the total eradication of the
Nandi female
initiation rite. Rather it advocates the need to eradicate the practice of female circumcision that involves clitoridectomy and excision because it is physically unhealthy and does not conform to Christian teaching. The initiation rite can continue to be practised and the actual circumcision can be replaced by some other symbolic acts not harmful to women's bodies. This can be derived from the culture itself or Scripture that now forms part of the Nandi way of life."
[93]"
a quote from here:
Religious views on female genital mutilation - Wikipedia