I’m not convinced. In many states there are so called non partisan commissions which determine district voting lines such as Arizona for example.
In Arizona there are only perfunctory gun control laws.
Recall also that after the Mandalay Bay massacre, the interests in gun ownership, and subsequent gun sales, went up, not down. Sharing violence across congressional districts will only make gun ownership go up, not down.
I bought 200 shares of AOBC (Smith and Wesson) today.