Because it’s something where the current government can claim they’re “doing something” or “addressing a real problem” but it also doesn’t threaten the rich and powerful.

Going after Facebook would threaten the rich and powerful, for who it is an important tool for manipulating people, who think they can use it to mold culture to what they want it to be my breaking the minds of children.

The current UK government is desperate to say to the public that they’re governing and fixing problems, but they also really don’t want to piss off the rich and powerful.

because Facebook is an abstract danger, porn is (relatively) well defined