There are two reasons right off the top of the list that they won’t do this.
1. The pro-gun crowd is populated by both conservatives AND liberals. Women’s rights peoople see hand guns as the great liberator.
2. Hitler did it. He made it very difficult for anyone else to do it in western civilization without being compared to Hitler. It increases the difficulty substantially.
There are other reasons, not least of which is the sheer quantity of guns and ammo out there.
Bump.