If you're curious about the sorts of people who push for these sorts of things, one who appeared before parliamentarians is the U.K.-based Vice-President of an American bunch of Christian fundamentalists known as NCOSE (formerly known as Morality in Media)*, Haley McNamara.
These politicians also voice "concern" about something, then they push for broader censorship than that. For instance, this "baroness" appears to be looking to censor vast swathes of content. It is an extreme attack on free expression.
* https://en.wikipedia.org/wiki/National_Center_on_Sexual_Exploitation
#ukpol