Making it illegal suggests indispensability. Why make a law for something for which there is no demand or supply?
You suggest exterminating pornography would have a minor effect. If so many people want to exterminate it that they make it illegal (I suspect without checking that at times illegal under draconian punishment) but it still hasn't been exterminated, that seems another argument for indispensability.
But these points are irrelevant to my original question. Why specify Western culture?
Even if pornography were dispensable in some Islamic cultures (whether we label them as Western or not), that doesn't say it isn't also indispensable in non-Western cultures or dispensable in some Western cultures or both.
You suggest exterminating pornography would have a minor effect. If so many people want to exterminate it that they make it illegal (I suspect without checking that at times illegal under draconian punishment) but it still hasn't been exterminated, that seems another argument for indispensability.
But these points are irrelevant to my original question. Why specify Western culture?
Even if pornography were dispensable in some Islamic cultures (whether we label them as Western or not), that doesn't say it isn't also indispensable in non-Western cultures or dispensable in some Western cultures or both.