First, if these guys inject homemade mRNA vaccines, aren't they going to have to make homemade 5G base stations to activate it?
Second, they're going to win Darwin awards.
Third, this is just a "wedge issue" for medical freedom, the Qanon concept of forcing your doctor to approve treatment of COVID or cancer with ivermectin, or whatever dumb new age folk remedy is popular on 4chan right now.
Fourth, Reason no longer has a reason for existing. Libertarians back Trump, an extreme merchantilist. The USA on the whole no longer believes in market based solutions.