Yeah, as much as I love these kinda stories, the more derivative it becomes, the more that it just loses the plot.
Like, in a classic isekai/shoujo romance manga, the "heroine" is someone who is clumsy and sometimes sucks at what she's doing, but she really genuinely tries hard and actually did do things that makes the men fall in love with her. She's not just "teehee adorkable". Don't these people know that in classic shoujo titles very often the prince (or whoever the love interest is) dislikes her too? The love interests are very serious in upholding their duties, and the heroine only won their hearts through effort and actually doing something worthwhile.
And on the flipside, originally, the "noble villainess" stories that condemns the "heroine" for being naive and stupid do have a point. Like sometimes a classic shoujo manga "heroine" does "good things" that actually makes no sense economically or socially unreasonable for a society with strict hierarchy like this. I mean, stuff like that are probably written by working adults who thinks that shoujo romances are too fluffy and unrealistic compared to the harsh reality they experience at work. I can relate, when I read a more "classic" style shoujo romances (they do still exist) I do feel like it's too airhead-y or unrealistic to me.
But then the copycat titles just completely misses the point, so it's all just flanderised into nonsense. The "original heroine" just becomes either manipulative, or completely useless and just cry and do nothing. The men who fawn over her are just "charmed" into loving her through magic, or are just utter idiots from the start. The "villainess" protagonist only did the bare minimum common sense stuff and gets praised. Or the villainess just becomes the good classic heroine herself because the "original heroine" is evil. It's all lazy writing.