The settings and how characters do things don't really make realistic political sense, the whole thing feels like an exaggerated villainization of the 2 main male characters while the rest of the important characters are like dolls without sufficient emotional capacity, especially the male characters all completely lose their rationale and easily fall in love with the concubine just by meeting because it's oh so angelic like what, and just like that all the male characters will flock to the concubine's side like bees trying to appease him despite he's already unofficially the king's lover like how they tryna appease him without inducing the king's jealousy and thus it's risking their life when the king's like that.
If the king gonna act like a tyrant, it doesn't make sense how the queen is in his way when he can just do whatever he wants, but if he's restricted politically, then there's no way there are no nobles especially family and supporters of the queen (the maids are likely to come from noble families too especially the head maid) and etc would just stay silent like that all this while. It might make sense if there's magic/curse involved that the concubine has charm/manipulation abilities or something but so far there's no sign of magical involvement, and the phenotypical appearance of the baby.
There better be some convenient magical explanation because it's almost as if the author has some sort of resentment or something towards bl stories/gay couples or have experienced rejection from a gay crush or something. It's just so weird that the story is not making good senses from many aspects that it's like a resentment fantasy the author wrote for themself to indulge in without a good story.
Edit: Is this novel/manhwa popular in Korea? Popular or controversial? Do the majority of female readers really like this plot? I'm so confused if that's the case.