Guns do only one thing, kill.
Obviously, this is incredibly far from being a true statement. If you're basing ANY argument on this flawed statement, well...
I wonder what percentage of fired ammo is even fired with the intent to kill? And of the ammo fired with deadly intent, what percentage "succeeds"?
I have roughly 80,000 (yes, 80,000; it's not a typo) rounds fired through rifles directly behind my house every summer (for 30+ years so far, probably closer to 50 years, maybe as many as 60 years). Not a single round was fired with the intent to kill or harm, and not a round caused unintentional harm or death.
That was just the rifles... If I added the BB guns, pistols, and shotguns (shotguns are running around 20,000 rounds/year), well, that's a WHOLE LOT of "not killing" going on...
Killing is something that firearms can obviously do, and that they're designed to do, but it's not what they "normally" do.
A statement like "Guns occasionally, or rarely kill things" is probably closer to the truth.