One of the first up in the firing line should, imo, be Professor Neil Ferguson, so-called 'virus expert', who has a track record of abysmal failure in his predictions concerning virus attacks.
Hmmm. It was Ferguson prediction of 250.000 Covid deaths that forced the British government to abandon the herd immunity policy and put the country into lockdown.
It has to be pointed out that the science is divided on this matter. There are basically two models:
1. The herd immmunity model argues that's it's better to allow the virus to spread more less freely, so the vast majority of population gets immunity. The logic behind this is that we won't be able to find vaccine in near future, and that the second wave of the disease could be more deadly. This strategy has two extremes: a) Bolsonaro (Brasil), Lukashenko (Belarus), early Trump, and early Johnson, and b) Swedish mitigation model with very few restrictions, but still some restrictions (no mass gatherings, social distancing etc.).
2. The suppression model (New Zealand, Australia, Denmark, Norway, China, Taiwan, now the British government as well, and many other countries) argues that the virus can be contained, if not completely but so much that the epidemic can be controled without too many deaths, and without health care system being overwhelmed. They are all aware that the second wave could come, but they argue if it comes they will have been better prepared to fight it (stockpiling of PPE, people will already have been 'trained' in social distancing, and if we are lucky we will have had either a vaccine or medicine).
I must admit that I prefer the suppression model for a short period of time (a couple of months) and than relaxation of the strict measures, just like we did Denmark. Though, I have a sympathy for the Swedish model (protect the vulnerable and let the healthy population acquire herd immunity). Actually, Denmark is going to follow the Swedish model now. The whole society simply can't live in isolation for more than a couple of months, and more people will die from poverty etc. than from this virus.
The US and Britain were too late in acting properly, so now they have both evils: a lot of deaths and a lockdown. The former could have been avoided had Trump and Johnson used common sense. Why common sense? Well, when China puts a city of 11 m people in a complete lockdown then something must be wrong.