To recreate anything close to the rights protections the ECHR currently provides, the UK would need a full‑scale constitutional overhaul.
Step 1: Draft a written constitution.
This means abandoning Parliamentary Sovereignty and replacing it with a system of entrenched, “supreme” constitutional law and real checks and balances. That alone is a multi‑year project requiring public consultation and agreement from the devolved nations.
Step 2: Create a comprehensive Bill of Rights.
It would need to be detailed, enforceable, and constitutionally entrenched (not just another statute Parliament can repeal).
Step 3: Parliament would have to vote to limit its own power.
A Constitution Act would have to explicitly end parliamentary supremacy and elevate the new constitution above ordinary legislation.
Step 4: Build the new constitutional machinery.
This means establishing a constitutional court, rewriting large parts of the legal system, and implementing the structures the constitution requires (another multi‑year process).
Step 5: Implement the Bill of Rights under the new constitutional order.
Only then could it function anything like the ECHR framework.
In theory, Parliament could do all this. In practice, it would consume an entire term (or more) and require a government willing to prioritise rebuilding the state over pursuing any normal political agenda. We're firmly in pigs-flying territory.
And even after all that, without an external supranational court, UK citizens would almost certainly have weaker rights enforcement than they do under the ECHR today.
I get that its a complex subject that requires a detailed understanding of our constitutional structure, as well as alternative structures and the functioning of international court systems, so I don't mean to imply that Reform voters, or others who say the supporting leaving the ECHR, are "ignorant" in the general sense - but Farage (and others like him) do absolutely rely on people being ignorant of the state of human rights laws in the UK and the reasons embedded in our constitutional framework that make it near impossible to implement domestic equivalents.
I don't think many of the general public who say they support leaving the ECHR really understand the implications. To me, the general public voting for that would be a tremendous act of self-harm (far more so than leaving the EU, which was more about the economic challenges).
And - assuming you're on the other side of the political divide than me - consider whether you'd really want the next Labour government to be substantially unrestrained by citizen's legal rights.