This comment seems to hit all the bad rhetoric hot points. You've misrepresented parent's point, attacked a straw man, and also somehow made a slightly racist argument that Koreans are interchangeable with Chinese and Japanese.
The point is that banning pornography might be creating a niche market that bad actors are happy to exploit.
I have no idea if it's true. But the argument isn't saying the behavior is rational and there was no claim made about the deep biological needs for porn.
Please engage with good faith and measured tone.