To my mind, gun control is about self control. If Americans could understand that they don't need guns - that guns make them less safe instead of more safe - there wouldn't be any need for legislation; people would voluntarily give up their guns.
Australians gave up their guns voluntarily - a couple of million were turned in at the time, and then stringent controls placed upon the acquisition of new ones. The murder rates went down. However, as the studies indicate, the trend was already downward prior to the the Howard governments amnesty.
It was a major influence on Howard being re-elected, though. It's been touted as the greatest thing he did while in office (after the Port Arthur massacre) but it is questionable whether it made any difference at all.
It is noted quite clearly that Australia and New Zealand showed almost identical trends over the last few decades, but one country had a gun ban and the other did not. In other words, there
should have been a difference, but there wasn't.
Countries like Switzerland and Israel, where the rate of gun ownership per capita is actually higher than in the US, show
much lower rates of gun-related violence - or any type of violence
at all. So what's that all about?
Clearly, there are other factors in play. One obvious point is that many of those weapons are state-issued to militias, which accounts for their being so many in the average household, but it doesn't speak to the lower rates of violence. Rather, it tends to
deny any direct link. If I was to draw a long bow, I might even be able to present an argument for compulsory national service based on the disciplinary and educational aspects.
Added to that, and almost as an aside, there are plenty of reasons in Australia to own one. Many of them are in the hands of rural owners, particularly where I live - it's generally understood that you're not very likely to drive off a dingo with a broom.
Statistics indicate there are now
more guns in Australia now than there were before controls were tightened. You'll find a rifle or three in just about every home more than 5 minutes drive out of Darwin... yet we aren't running around shooting each other (as much as some other nations are).
This doesn't necessarily mean that gun control laws are completely ineffective, mind you. It simply means that saying like "Seemples - ban the guns" really isn't the solution in itself.
It might also help to define what the question is before you can propose a solution.
If the problems in Chicago are majority gang related, which they appear to be from an outsiders' perspective, then wouldn't it make a lot of sense to look into how and why the gangs exist to begin with?
One of the interesting things that came up was drug laws... seems to me that's worthy of more attention than it is getting.
Chicago under prohibition would have been a fine example, if we had access to accurate data regarding crime (in general) before and after prohibition laws were repealed. Unfortunately, I'm not sure I'd really trust any data I could find now.