It ends as a finished militia war

"Deeply Misguided" New York Times Writer Calls For Financial Firms To Block Gun Sales

"What Sorkin is suggesting is more of the same, although perhaps with worse consequences. If banks take action where policymakers do not or cannot, they are essentially putting themselves above the law. And if banks start playing that role, where does it end?"

The second amendment provides the mechanism that ends the struggle, militia wars.  We attack the NRA while the NRA attacks schools.  My side wins, in the end, my side has the more regulated militia.