Trying to mass censor user generated content in real time and not causing censorship of speech from outside the UK isn't going to work. The only way they could stop anything they dislike is to abolish social media and implement a new internal national network that is wholly controlled by the state for residential use. We've seen the UK police website being blocked to those outside the UK. In the future, it could be physically blocked (making VPN's useless) and only available within a UK Intranet. Which I think they will do in the long term.
An update to a previous post I made also mentioned in the link, the first arrest for "inaccurate information" was made to a prominent critic of the UK Government, someone who was critical of vaccine mandates, lockdowns and face masks - Bernie Spofforth. From what I understand, she is just the first of many who face arrest as these plans will now make social and communication networks legally mandated to report what the state deems to be dissent, lies and harm to law enforcement.
This law introduced by the Conservatives will bite them in the backside as it will be used against those creating electoral communications that are critical of the ruling Labour Party. It's going to be very difficult for anything critical of Labour to be published as anyone who does faces arrest.
Labour will also likely make VPN use outside of business and Government illegal. They attempted to push an amendment to the Online Safety Bill to this end but it failed. Now they have a large majority and a new opportunity to ban them for good.
Another thing that came about in the last couple of days, the renamed Counter Disinformation Unit who targeted those critical of Government during Covid-19, the National Security Online Information Team, are now targeting those critical of Government who are on the right wing.
TL;DR - the UK now has a literal Ministry of Truth.
This is what the citizens of the UK want. They have chosen to be a warning to the rest of the west rather than choosing to save themselves. But at least they won't be remembered as racists.