Lockdowns led to reduced quality of education for our kids, which in turn will lead to reduced long term prospects for some (most likely the most disadvantaged). They led to cancelled or delayed tests and treatment for cancer and other critical diseases, which will inevitably lead to an increase in what would have been preventable deaths. Reduced access to non-critical health services leading to an increase in depressions and long term mental health issues. Devastation of massive swathes of the economy leading to a massive increase in the debt, which in term restricts the scope for increases in government spending and/or tax rises to fund it. Devastation of the tourist and hospitality sectors. Increase in suicides and domestic abuse. Probable increase in child abuse since the main avenue for detecting this abuse is schools, I've not seen any analysis of the third world impacts of first world lockdowns but these should also be factored in. There needs to be an independent public enquiry to get to the bottom of the impacts of these interventions, so that people understand the costs as well as the benefits.
Yes its a blunt instrument, far from perfect but would have happened if we hadn't locked down and the NHS got totally overrun?
Imagine a 2/3/4 month period where not only were those cancelled treatments for cancer and elective surgery's cancelled etc but a period where everything including emergency surgeries, Chemo etc were cancelled. where hospitals ran out of oxygen and and entire ICU wards full of people just die in there beds within minutes. Where you call for an ambulance if you have a car crash, heart attack, stroke, can breath because of covid, flu (the list goes on) and have a 1 in 100 chance of getting through. even if you did there's no hospitals to go to. How bad would that effects people's mental health long run?
Schools would have closed anyways for chunks of it if not the whole 2/3/4 month period. all the teachers would either strike or catch the virus leaving not enough teachers to look after the kids in the 1st place. meaning parents had to choose between looking after there kids and going to work. most would chose kids obviously so businesses would have closed all over the show when they had no work force.
If the NHS was in a lot better place than it is, we could maybe have got away without lockdowns, just stuck with masks/social distancing, maybe closing big indoor events. but its not in that shape. Sweden had a very good balance of quality abundant health care and lack of intergenerational housing to make it work. not a lot of places are as lucky.
If we had acted quicker at the very early onset and set up a decent track and trace system before it took hold here we'd also have been in a better place to maybe ride it out, but we didn't.
While a lockdown does have a lot of very bad side effects. but for us, the alternative would have been a LOT worse.