UK to censor online videos of 'non-conventional' sex acts

> "It’s mad that we regulate such material that aren’t even criminal acts," said Prof Clare McGlynn

This summarizes the UK at the moment.

I wonder how many of today's 'conventional' sex acts were 'unconventional' 100 years ago?

Maybe we should also put a stop to 'unconventional' music? Unconventional ways of powering your vehicle?

What this gets at is: what is the state's interest in doing this?