Comment by Tangurena2

The simplest cure, even though it is US law but would also benefit the UK, would be to repeal Section 230 safe-harbors when the platform uses an algorithm to curate content. If they are covered by the "safe harbor" then they are not responsible for the content. Otherwise, they'd be liable for libel/defamation/conspiracy stuff.

https://en.wikipedia.org/wiki/Section_230

A "safe harbor" is a section of the law where they basically say "as long as you do X, those other laws won't apply". https://en.wikipedia.org/wiki/Safe_harbor_(law)#