My brother in cartoon based questing, it is the only option where he is actually honest and you cannot change a problem that you don't admit is there, of course it is the one that leads to character change.
Blowing up in a rant is the only one that has him directly acknowledge that he does hate children, which is true, and that he hates them because they did not have the absolutely nightmarish 'childhood' he did under grandfather, which he did personally suffer through and never got to be a child because of.
Every single other vote tries to avoid spilling the beans that he hates kids and never had him acknowledge the reasons why.
I have to agree with Travler here. Thinking Double Down in any way makes Father a better person is inconcievable, I might as well be an alien from a different planet with how baffling I find the argument. I'll be fair, and say that both Rationalize and I Don't Know showcase the exact same aversion to growth.
He already knows why he hates children, this is just him coming mask off to the world. How, in any way, does voicing your commitment to evil, burning every bridge with good and moral people, constitute positive character development? The only ones who are going to go "hella based" are the scum of the Earth.
The idea that you have to admit your problem to grow past it is fortune cookie nonsense. There is one, and only one, step to solving a problem,
solving the problem. If you're doing something evil, stop. If you're doing something inefficent, change your strategy. If you're reputation as a villain is getting shot in the back of the head, make an insane rant illustrating just why you're an irredeemable piece of human garbage.
Making your problems other peoples problems is the mark of a child who has no self control or self awareness. It's the mark of a baby who can't accept responsibility for their own actions, or recognize that wrongdoing occurred. It's the mark of a snivelling, moral, coward.
There is no right process. There is no ideal sequence of events. You do, or you don't. You try, or you don't. You improve, or you don't.
You suck it up. You repress. You do what you have to do. That is what being an adult means. That is what being a grown up means. To ignore your own feelings, for the sake of others. To suffer, because to make others suffers is a pain far worse.
It's no great sacrifice. It's just basic decency.
It's a lesson a little girl like 362 learned, and because of her capacity to grow, and evolve, she managed to save at least some of her friends. Keep them alive. Keep them safe.
It's a lesson a vile villain like Stickybeard learned. To see that he was unsatisified with his life, that he needed to break his own cycle of mediocrity, and come out as a new man, on a new adventure.
It's a lesson Monty learned, when he gave up the 2x4 tech and the Book of KnD, willingly becoming decommissioned even though he could have kept his memories, because raising Nigel right was an indescribably precious blessing to him he valued more then any gumball or soda pop.
It's a lesson I value.