As for what their opinions happen to be, I don't think you are in a position to be able to speak for all of them, or even tell me what percentage think one way or another. My GP told me quite bluntly at the height of this so called corona virus crisis, that mortality rates in our town were about the same as they had been for years. He was critical of the lock downs, because he believed that the isolation and forced changes would create an unprecedented mental health crisis. He was certainly right about that. I strongly suspect that lock downs had negative public health benefits overall. Many people put on weight, many developed mental health problems and the disruption to social life was extreme. Yet anyone questioning the lock downs at the time was considered to be an anarchist, a fascist, a scaremongering terrorist, etc.
You are I think forgetting that in matters of health we do not count all deaths equally. There is a proper argument about whether to lock down or not is best. You have not put the factors here into any balance - so until you attempt this I won't comment much. My (not very strong) view is that the type of disruption seen in Italy - where health services collapse - is overall worse than lockdown, but I agree it is arguable, and probably unknowable given that the future course of epidemics has that nasty exponential characteristic.
Governments have more immediate pressures. politically, arguments about what might be pale to nothing compared with the outcry for action when inaction leads to a health service being overwhelmed. That was, at the time likely given best available evidence, without lockdown,
Long-term harm? Yes - but we allow many things in society that have proven large long-term harm. For example, massive marketing of unhealthy foods, and a food production system that means those needing to eat cheaply must eat poorly. That kills many more people, and has bad effects on children. There are many other examples where we prioritise prevention of directly caused deaths over things that in a whole population are statistically certain to lead to poorer health outcomes.
I am not saying that I like this - I accept it is not easy to change the politics in a democratic country.
THH