Hard to get a diagnosis when the hospital is overrun with people dying in line, friend.
To the other points: yes, things will be hard. We can quantify how hard each approach will be.
In the case of a lockdown, there will be orders of magnitude fewer deaths.
A tally is being kept—all the numbers were run before a lockdown was even considered. The only reason this debate continues is because so many ignore the hard work medical administrations, public health departments, virologists, economists, and policy makers have already done.