there are no calculations being done. They believe in the cause therefore it is justified. They dont believe in the cause of the other side (freedom of movement/commerce) and therefore dont believe they are justified.
They are pretending to base it on science, when it is just another political opinion.
Calculations on what, exactly? There are calculations done on how police brutality and systemtic racism contribute to decreased quality of life for black americans. It's considered widely acknowledged within the healthcare industry that black americans have statistically significant health disparities compared to other races, and that additionally it is statistically known that the covid19 shut down primarily affect the service industry, which hits people of color disproportionately towards white people (as people of color are less likely to have jobs that can be worked from home).
I mean, the idea is also that the 3 month lockdowns themselves have hard numbers behind them. From what I understand economists have themselves already modeled out the effect of covid-19 without a lockdown and found a lockdown is still more economically beneficial.
They are pretending to base it on science, when it is just another political opinion.