She had it bad...but usually people try to be sympathetic or empathetic about other people's sufferings...that would be my first reaction(i mean, snap at her or call her out) on top of that...she spies MC TWICE, but she doesn't get it that MC had it rough for pretty much all his life: fucked-up childhood filled with abuses of every kind, ran away, joins the Marines, and basically fights and shoots at people every other Tuesday, you can say that he has a taste of happiness when he met Kasey.
Because from the player's point of view, it seems like the father is apologizing to everyone but not to MC...he wanted him there, and he was willing to put the girls against him...imagine the situation: your horrible father decides that you either listen to his last wills, or the rest of your family will be homeless and without a dime...imagine that, imagine how much that family will hate you if you don't show up...then you show up, and your father decides that you must work for your family, even when you're a successful person already...but the very moment you show up...there is already drama because some members of your family already hate you...
MC can inherit the job...but it's like even in death, his father always considered him a loser, someone unable to provide for himself, like he didn't change, not even in death(giving money to people, doesn't make you a good person, look Bezos or Musk), he refuses any chance and possibility that his son may be better than he could ever be. That's literally John/Father's last spit in the eyes of MC.