What's something you dislike about your fav character(s) and why?

Be as honest as possible (if you don't dislike anything then cool but I want to see people's reasoning)

Zenitsu: As much as I love and defend him, I find his simping tendencies cringe and the anime exaggerating his antics doesn't help his image. While most of his yelling and whining are reasonable (he was practically forced to be a demon slayer and went through tough training), however some of them are misplaced and even unnecesarry like when he's simping for girls or when he gets mad at Tanjiro for being whimsical.

Genya: This might be controversial but he can be a huge doormat to his brother. Even when Sanemi mistreat him and openly threatened to harm him beyond repair, he still defend him and never tries to protect himself from Sanemi's actions. I get that he feels guilty for what happened but because of his lack of self-respect, he just let him treat him like this. The fact that he has no problem with being rude to people who did nothing to him/tried to help him but can't do anything to Sanemi but take all the abuse really frustrates me.

Sanemi: No amount of traumas and excuses can justify the fact that he hurted people who didn't deserve it and it doesn't help that he takes his anger out on people in a very disproportionate way to the point that it can make him sadistic and unsympathetic even when he's portrayed in a sympathetic light. Even if his reasons to protect Genya is noble, however he did a terrible job at it and there was many ways he could make Genya quit the corps and the fact that he never apologized for how he treated Genya genuinely stings.