Because there's legally nothing wrong with it? It's a very different perspective on the 'outside', i've read a lot of the commentary on pro/anti guns and personally i'm against it.
Do you really think this? sure it's 'within the law' but white dudes going to a mall with an automatic rifle in light of recent times is fucking dickhead behaviour. Also, it's fine to be brave on the internet, but you'd shit yourself if you were in a mall in America and you saw some douchebag white young dude holding deadly weapons.
What's the point of carrying a rifle (loaded or not) into a department store? What purpose does it serve?
the point is being an asshole. If there would be a legal allowance for you to have your cock out your pants and walk around, idiots would do that as well, then harp on about their 'legal rights' when most normal people called them mouth breathing losers.
just because some way outdated law exists, doesn't mean going shopping with huge ass gun in a department store is in anyway normal. it's just bullshit attention seeking.
Also: "It wasn't loaded" what in the fuck was the point of having it then?! He's not protecting himself from shit.