Now keep in mind that if she murdered her father she would have said he was abusive and gotten away with it.
Thankfully, Japan generally doesn't go in for such nonsense. People freely admit that both mothers and fathers can be abusive.
If anything, it's the mothers who accidentally abandon their infant children to die in overheaated cars while they play pachinko who get off easy. There seems to be a story like that every few months.
There
is anti-male prejudice in Japan, but the situation isn't nearly as ridiculously unbalanced as it is in the west. Basically both sexes get screwed over equally!