Earlier quoted context omitted.
What does legal matter if the guys holding the guns don't care about the law?
Suddenly the rationale of the 2nd Amendment in the US Constitution becomes clear.
About the one thing this situation does not need is armed randos taking matters into their own hands. Currently, Seoul is in a constitutional crisis. The President is required to lift martial law. He has not yet done so. If people on the streets started shooting at each other, he'd have legitimate reason to send in the military. Korea's lack of a 2nd Amendment is one of the things keeping this constitutional crisis from what would have been the stupidest civil war of the millenium.