Actually, they can tax your right to freedom of movement, if you use any form of transportation, that requires a public road or water way.
The state can force you to obtain insurance for that transportation also.
A private entity, a bank, can force you to obtain insurance on your own home, while you hold a mortgage on it, as well as insurance on the mortgage payment itself.
Which sets a clear precedent than you can be taxed to exercise your gun rights, as well as insurance companies requiring, or even denying you homeowners, or auto and boat insurance, if you store in the home, or transport a gun in the vehicle.
I’m interested to see how anyone thinks a court can force an insurance company to cover you, based on your gun rights.