The premise is bizarre and hard to salvage. It would make sense if this was a drama since the premise is primed for that, but it's supposed to be a light-hearted slice of life...
I looked at the comments on COMIC FUZ to see what Japanese readers think of this and this seems just as controversial...
This is what you said:
This is an awful definition of mangaka that, as I said, nobody will agree with. And you backed it up by twisting a simplified, incomplete definition of the word you found on an English dictionary.
Again, don't be surprised when people keep misinterpreting your words when...
I'm genuinely flabbergasted by this. Nobody else uses the word in the way that you do, and you should not be surprised when people misinterpret what you are saying.
Not only are you needlessly condescending, you are simply incorrect! Mangaka refers to the artist and only the artist. You don't refer to the editor or the author as mangaka, unless they are also the artist. Authors are referred to as gensakusha.
Why am I not surprised that a manga whose sole premise is a man punishing comically evil women with sexual discipline brings out so many anti-feminist misogynists? You people realize that this is fiction, right? It's not even good fiction, at that.