Wikimedia should block UK access. That will get the attention of media and popularity contest politicians might change their mind. Remember the "Repeal the Online Safety Act" petition? It has gotten over half a million signatures and the response from the government was a loud "no". > The Government has no plans to repeal the Online Safety Act, and is working closely with Ofcom to implement the Act as quickly and eff…
And they also ignored this one a few years back that had just under 700,000 signatures to "make verified ID a requirement for opening a social media account":
https://petition.parliament.uk/archived/petitions/575833
Ironically, the primary reason they gave for rejecting it was:
> However, restricting all users’ right to anonymity, by introducing compulsory user verification for social media, could disproportionately impact users who rely on anonymity to protect their identity. These users include young people exploring their gender or sexual identity, whistleblowers, journalists’ sources and victims of abuse. Introducing a new legal requirement, whereby only verified users can access social media, would force these users to disclose their identity and increase a risk of harm to their personal safety.