Given that an estimated 44% of Americans say they live in a household with a gun, and given that estimate is probably low, we can assume that at least half of all people in America have some level of access to at least one firearm. If guns caused the problem, we'd all be dead already. Collective punishment is not only wrong but impossible to carry out and a waste of time, energy, and resources, and would absolutely make things worse.

I got banned from there too. r/Libertarian is very autocratic in it's moderation.

I got banned by those guys too. They're essentially an HOA.