Earlier quoted context omitted.
I’d say the basis in the US is freedoms guaranteed by The Constitution, just like the basis for smoking, drinking, using recreational drugs, having an unhealthy diet, riding a motorcycle, not exercising regularly, etc.
To choose not to wear a mask is not like your other examples, because it increases not only the risk to yourself, but to those around you. I don't necessarily think your posts should be getting flagged, but you seem to be arguing in bad faith.
I would say several of those examples actually do increase increase risk to others, second hand smoke, being incapacitated by drugs or alcohol can often put others at risk for a number of reasons, etc. Furthermore, I would think that other behaviors, like having an unhealthy diet or not getting enough exercise put an increased burden on society which is borne by others, even if they are not put at risk.