Considering why all liberals everywhere invariably despise the Catholic discipline of celibacy is part of considering the argument based on the merits, in my opinion. I don’t want the already too liberal Church to become more liberal.
Freegards
You present the best argument for keeping the celibacy policy in place: The concern the Church will get even more liberal and left-wing than it already is. I doubt that. Although I don’t argue that the policy compulsory clerical celibacy causes homosexuality or pedophilia there can be no denial that policy over the centuries helped create an atmosphere and an environment not to mention a rather significant subculture attractive to such individuals.