He's not entirely wrong. At all.
But that's not a valid reason to trash the 2nd amendment.
What he's completely missing is that some of us (most of us, really, to one degree or another) are interested in different kinds of guns the way some people are interested in different kinds of cars, watches, clocks, tools, or any other kind of cleverly engineered devices.
"Of course," the liberal says, "those things aren't used to kill people or cause fatal accidents...."
Oh. Wait. Yes they are. All the time. And in the case of tools and cars they cause MANY more deaths than guns.
"Yeah, but we NEED tools and cars! Our society couldn't exist as it does without them...."
Uh, yeah. That's our point, too.