Scroll down to the last chart. Female intimate partner homicide...

Scroll down to the last chart. Female intimate partner homicide has been trending down since the 90's.

https://www.aihw.gov.au/family-domestic-and-sexual-violence/responses-and-outcomes/domestic-homicide

Do I think violent scoundrels need to be dealt with?

Yes, but very little will happen on that front because if you want to get medieval on those who deserve it and need to be excluded from society, the types who won't be convinced by hundreds of millions spent on education campaigns or mates having a chat, the civil libertarians and human rights people will go berko.