For venal politicians on the front lines of the movement to subvert the Second Amendment, it’s a cunningly effective strategy: if they can’t ban it, they’re going to tax it. By adding a ‘sin tax’ to gun and ammo purchases they make it more difficult for law-abiding citizens to exercise their right to keep and bear arms. It’s just a principle of economics. Participation drops the more expensive a hobby or a recreational activity becomes, even on an incremental scale. Of course, as mentioned, we’re not just talking about a hobby or an activity or even a bad habit. We’re...