Gun control pushers are against "assault weapons". They are against concealable "plastic pistols". But they don't want to disarm law-abiding people...or so they say.
Some push gun control as solution to crime. That places without legal guns are usually quite unsafe doesn't shake their belief in the benefits of gun control.
Others want guns gone to prevent suicides. They'd have to ban all guns for that -- most suicides involve one shot at contact distance, so even a matchlock would suffice -- and also outlaw gravity, rope, blades of all kinds and carbon monoxide.
But let's say that guns are gone by magic and all knowledge of their production as well. And no one makes bows or crossbows or slings or atlatls or any other projectile weapon. A sword is a relatively complex weapon compared to a sharp stick, but also very familiar to us through it's smaller relative, the knife. First appearing thousands of years ago, swords were a part of freeman's costume until mostly supplanted by pistols in the 18th-19th centuries.
A sword to fend off attacks and chain mail to protect from slashes, cuts and bites...this combination was hardly new a thousand years ago. Would anyone who supports gun control approve of other people wearing them? Or their talk of only being concerned about the modern military weapon a lie, and they really are out to disarm everyone else of any defensive implement, no matter how short-ranged or archaic? Ask them.