Good point on why to join the NRA.
Now that we have SCOTUS backing of the 2nd the NRA can now abuse them with lawsuits. In essence they can out spend them. How long can DC and Daly keep spending money and losing before that can't spend the cash or the political capitol. It is very much like Regan outspending the Russians.
I bet that other cities and states are watching this closely and may change their firearms laws just so they don't have to spend the money fighting the NRA. That is reason enough to join.