The enemies of the system of free enterprise paid liberalism an unintended compliment when they applied the name "liberal" to their own creed, historically the opposite of what liberalism stood for from the start.
Even if the COVOID-19 virus turns out to be more severe than the skeptics give us reason to think it is, we can get through it. We cannot survive the end of the division of labor. It would be the finish of civilization as we know it.
How much licensing requirements are designed to “protect” the health of the public, and how much to restrict competition, may be gauged from the fact that giving medical advice free without a license is rarely a legal offense. Only the sale of medical advice requires a license.
Since outright grants of monopoly or quasi-monopoly would usually be considered baldly injurious to the public, governments have discovered a variety of methods of granting such privileges indirectly, as well as a variety of arguments to justify these measures.