Censoring something is the lazy way of getting people to conform to your ideals. Imagine that instead of a censor campaign, the UK government had made an attempt to educate the public on the effects of porn. This could be done with adverts and studied in sex ed in school.
This has nothing to do with getting people to conform, it is about getting people who want us to conform to believe he is on their side (after offending a lot of said people with the gay marriage changes). The subset of the people he is trying to placate here are a subset who are very much against sex education in school.
