The basis of your hated lockdown is the Public Health (Control of Disease) Act 1984. Do you know who was the Prime Minister in 1984? Where is your Lytton Strachey, Piers Brendon or Andrew Roberts to do for Thatcher's Premiership what, in particular, Roberts did for Churchill's? From the same corner, there would be plenty of material for Eminent Thatcherians.
The Single European Act, the Anglo-Irish Agreement, the Exchange Rate Mechanism, the Police and Criminal Evidence Act, the Children Act, the replacement of O-levels with GCSEs, the massively increased benefit dependency, the rise of Political Correctness, the legalisation of abortion up to birth, the fight against Victoria Gillick, and all of that would just be the start.