I don't understand your reasoning. Do you genuinely jst like bland characters or what.
A lot of people, including me like very complex character.
For example, The black witch from Sss revival hero. She's so kind (this is pointed out a lot by the MC in the novel)
Yet she's willing to kill bcs of her experiences. I can't explain it cause I ain't good w that kind of shit but you get the gist if it.
Also, Iruma from mairimashita iruma kun.
He too is super duper kind, to the point he's like a push over. But he had this charismatic strength that somehow doesn't allow him to give up so easily.
Shinobu Kocho from Demon slayer.
I don't have to explain why a kind of character she is. She's that complex.
I can name a lot more characters but I'm sure you get the gist of it right?
There's a lot more people that likes even villains because of their complexity (like, villain villain.)
I used to hate rashta so muchhhhh in like 2020-2022 but now I just feel bad bc shes mentally challenged, I will never understand rashta defenders though you can’t just like a character bc they’re “complex”