I still use numerical models originally written in Fortran in the 1970's. Some features of Fortran 77, Fortran 90, and later standards have been added as new features have been added to the models. The models have been used on super-computers, mini-computers, and PC's. Adherence to formal language standards have made this longevity and portability possible. While no code can claim to be bug free, after half-a-century of usage most of the obvious ones have been fixed. In theory, the newest Fortran standards have dropped support for some older language features. In practice, most Fortran compilers still handle obsolete code features correctly. Of course, there are other languages with stable, formal standards that can provide similar portability and longevity.

Freedom also means you are responsible for your actions. If you ignore the advice of public health officials, spread a contagious disease, and someone dies as a result of your actions (even if the actions are taken as a result of ignorance), you have committed negligent homicide. A jury of grieving grandchildren or parents may not show you any mercy. (Ok...That's harsh, but it does make the link between personal responsibility and personal freedom.)

In fairness to your argument, real-time estimates of case fatality rate are recognized as unreliable; reliable estimates will come too late to settle the debate or inform policy decisions. (The fog of war is real.) If we are lucky, a less deadly variant of this virus is circulating and flattening the curve for us; but, the available evidence suggests that is not the case. Data from the USS Theodore Roosevelt and randomized sampling in Iceland indicates that about half of cases are asymptomatic (not enough to support an optimistic view of transmission or mortality rates). The more likely assumption is that social distancing flattened the curve enough to avoid overwhelming the hospital system (although medical personnel in New York City might not agree with that assessment). Italy was not so fortunate...

As for food shortages, I'm not particularly worried. If things get to that point, Uncle Sam will reinstate the draft and make sure food stays on the grocery store shelves. (As a friend of mine pointed out, during the Vietnam War era the Army demonstrated that it is possible to hand someone a loaded gun and convince them not to point in the wrong direction.)