Let's be honest. Gun laws are not the reason Australia hasn't had a mass shooting. I'd bet it's simply a coincidence. Anybody can shoot up a school with any kind of gun. I will say he is right about the safety nets, wages and education, but he's wrong on pretty much everything else. Guns are used defensively, frequently and he's also wrong about having a gun in the home makes it more dangerous.
The author falls prey to bigotry known the world over (myself included when I'm not careful) of judging, in detail, people he has never met. He comments on how there is no difference between Jewish, Muslim, Christian, and Hindu extremists, yet lives in a mostly secular nation. He generalizes that all NRA members are frothing mad, but how many would one meet in Australia? I'm skeptical. He speaks about a "Wild West Mythology." What would that be? The West was wild because it was remote frontier with barely established "civilized" settlements. Drawing a correlation between gunplay in the Old West (due to lack of established law enforcement) and gunplay nowadays (anarchists, lack of unity leading to fringe groups and hate) has nothing to do with "Wild West mythology." He is correct in that we are divided, and we have our problems, but he should really educate himself on the ACTUAL cause of our problems and not just feed his nationalistic ego by believing the tropes.