It doesn’t matter what Kim has done, no matter how frustrating. No child should be spoken to that way, especially a girl.
If he is so justified in being a good father and not being a manipulator, he needs to be the mature one here and be a good example of a loving parent. Blaming the mother is no excuse for what he did and what he said.
None.
Why does the girl have special status? Do you prefer your female children? Will you participate in the medication of your boys but demur at little precious?
Having raised both, I can tell you that although boys can be louts, girls start calculating the angles while still toddlers.