(In an effort to stay as politically correct here as possible.

)
I’m not saying anything about what is and isn’t working in DC. Nor, what will and wont. (I guess I should have said: Work the same way.)
I’m saying that there are quite a few factors involved with regard to where mandatory gun ownership will and will not work. It’s not a blanket solution.
i.e. In a small southern town of a few thousand folks is one thing. In a big city (such as DC) full of gangs, poverty, various levels of mental/physical/financial stability is quite another.
If you can’t see, as well as understand that. I can’t explain it to you, and wont waste our time trying.
BTW (and for the record) – I am by no means anti gun. I own a few. Quite a few. And a CHL/CCL. I carry quite often.
However (as I told Bot) - I just get sick of hearing from folks whos "big picture" is actually a wallet sized black and white image they drew up and printed themselves.
(That’s not necessarily directed at anyone in particular. Though it certainly could be.)