I read your **** when you post it. So, yeah. I actually want to see if MP-Ryan will dissect it. I like reading reasonable back-and-forth. It's mentally stimulating. I think there are others here who also enjoy this. 
I read that when it was first published, thoroughly dissected it for another forum back then, and have no desire to take it apart point-by-point again.
That said, I have posted a number of things in this thread that thoroughly debunk a great deal of that opinion piece already. Anyone who wants to do so can go back and read them. Notably, the author engages a number of politicized fallacies when he talks about banning guns and the regulatory regimes of other countries, and neglects to examine a number of the statistics showing the variation in firearms-related injuries and deaths in various countries with different legal frameworks. Furthermore, he acknowledges none of the peer-reviewed research on the subject and instead engages in folksy "Common-sense" analysis, which is a term I hear from 'conservative' friends of mine in the US who are notorious for invoking it when they run out of meaningful sources and academic citations.
What people such as that author never acknowledge, constantly deflect, and frankly don't want to discuss is the hard-and-fast numbers: the numbers that show the United States as a whole has an epidemic of violence around firearms that is due largely to the confluence of the following factors which are not nearly as pronounced in its comparator nations, namely:
1. Lax and/or piecemeal regulation of firearms.
2. Historical cultural attitude toward firearms (2nd amendment).
3. Highly diverse population.
4. Large marginalized population in rigid socially and economically immobile classes.
5. Poor public support for funding of mental health services.
The NRA and their ilk are absolutely correct that firearms are not evil. Firearms are tools. Unfortunately, in the United States firearms are an altogether easily-available tool that allow people to commit extreme violence with ease based on a number of causal factors. If all democracies - nevermind just the US - could meaningfully address and mitigate those causal factors, you could put a firearm in the hands of every man, woman, and child. Unfortunately, a number of political factors in the US in particular make meaningful progress in those areas of policy difficult if not impossible. The result is that deaths and injuries due to illegal, improper, or unsafe use in the US are astronomically greater than any comparator nation. I previously provided a citation for this.
Once again, in the event it was not clear earlier - I am a firearms enthusiast. I do not believe in the "ban guns" paradigm, and it infuriates me that "ban guns" is always the way pro-firearms advocates want to frame their counter-arguments. There are a hell of a lot of very reasonable and very effective changes that can be made to firearms regulation in the United States that fall well short of banning guns that would put a serious dent in the injury and fatality numbers. Unfortunately, it seems the vocal crowd wants to talk about the merits of the "Ban Guns! vs 2nd AMENDMENT!" debate, which is entirely a false construction explicitly designed to ensure nothing is ever done about this issue.
At this point, I'd love to see a social experiment - every government in the US should simultaneously repeal every piece of firearms-and-weapons-regulating legislation in the entire country. At this point, I think it's the only course of action that might inject some sense in this absolutely moronic debate.