The point of this hypothetical, like the point of owning your own nuke farm earlier in this thread is quite lost on me, personally.
Are you saying you would like to carry a flame-thrower? That you would like to see others carrying flame throwers?
He's attempting (and failing IMO) to compare owning a firearm with owning and carrying a flamethrower on your person.
He's attempting (and failing IMO) to indicate that just because carrying a gun is legal, doesn't make it a good idea.
In my opinion, he's grasping at straws because he can't present an actual logical argument against gun ownership.