This is an interesting set of questions, but is sadly incomplete. Perhaps I could offer some more:
21. Most narcotics are banned, and yet are likely available within a mile or two of the location of every one of your readers. This is despite a "War On Drugs" that spends a thousand times more than any gun controller has ever proposed on confiscation. The question is: which weighs more, a ton of cocaine or a ton of Glocks? Extra credit: why do so many people think passing a law is some sort of magical talisman against the Evil Eye?
22. The Democratic party has a long history of saying "we're not going to take your guns", while simultaneously seizing people's guns (Lockyear v. California, the permanent injunction issued against New Orleans following Katrina gun confiscations, etc). Is there any reason that an educated person, aware of current events, should take at face value any statement from a Democrat that they support the right to keep and bear arms?
23. Aren't the Democrats sick of losing elections?
While japete's motivation deserves praise, I'm afraid that I am cautiously pessimistic that it's even possible to have a debate such as this. There's no commonality of first principles, and so people - even people of good will (which I presume japete to be) - will talk past each other. I believe that 99% of gun control laws are either futile or mendacious. Japete seems to think that there is a "sweet spot" where real progress can be made in reducing gun death by reducing law abiding people's access to guns.
24. When did the Left decide that the People couldn't be trusted, and if gun control laws as proposed (Assault Weapons Ban, etc) had been in force in 1946, would that not have prevented the Battle of Athens from expelling a corrupt government in Athens, TN? Extra credit: Is this not counter-revolutionary?
25. Is this whole debate - at its heart - not about gun deaths, but about the balance of power between citizen and government as originally established by the Founding Fathers, and the desire of "Progressives" to shift power to an elite minority of decision makers?
Sadly, I don't see any gain from this sort of discussion.
Full disclosure: One of my friends in High School shot himself, so I know about gun death up close and personal.