Look at the origins of circumcision. Religious parents were worried that if their boys started masturbating, they would be spiritually condemed. So they started removing the foreskin, thinking it would reduce the likelyhood of them masturbating. Circumsion was invented to reduce sexual sentation.
The overall reduction in pleasure between loosing the foreskin, and losing the clitoris, is less severe, but the principle is the same. When you amputate nerve endings, it reduces sexual sensitivity. That's why non-consensual circumcision should be made illegal.
There is no basis for allowing for non-consensual circumcision to go on in Canada, other than maintaining a statue-quo that appeases our religious establisments. In Canada like any other Western Nation, Church and State are suppose to be seperate.