Celibacy leads to a disproportionate number of homosexuals entering the priesthood. When they reach a critical mass, they achieve real administrative power and are able to operate much more freely than if the overwhelming majority of priests were heterosexual. That is true in any organization that gives homosexuals full access and proximity to young boys.
So, once again, what causes homosexuals to achieve admnistrative power in protestant denominations and public education since you can't blame it on celibacy?
The Church has always been aware of the problem and has taken measures to deal with it. But no rule is better than its enforcement. Plenty of men were expelled from seminaries in the old days because they like being with other boys too much. Of course, many get through undetected. After Vatican II many priests forsook their calling, most to get marriied, and many just because they had been disappointed. With so many slots opened, bishops began to accept the scrubs and the queers. Many rationalized by accepting the new therapy notion, thinking they could cure these men.