When you hear Trump attacking women all across the ideological spectrum whether it be Megyn Kelley or Susana Martinez to Hillary Clinton and Elizabeth Warren, I think what you are seeing is a deep rooted resentment towards successful women. Worse, to the extent that they are the subject of abuse, harassment or even violence, there is this idea that women are ultimately at fault.
Trump is hardly alone. Many Republicans, including such mainstream Republicans as Paul Ryan, have pushed the idea of legitimate rape as a defense by men against women allegedly being quick to persecute them through charges of rape. However, Trump does drop the dog whistle and replaces it with a bullhorn in actively attacking women who simply fail to actively support him.
http://www.salon.com/2014/09/09/it_wasnt_ray_rices_fault_the_sick_twisted_logic_of_mens_rights_activists_on_domestic_violence/
The video of Ray Rice is domestic violence in action: Rice hits his fiancée, she hits a railing on the way down, and then he calmly pulls her limp body out of an elevator. The only time he displays a shred of emotion is when he has trouble getting her legs to clear the elevator door. But if you think concrete video evidence is enough to convince people that Rice was horribly wrong, you must be new to the Internet. The denizens of r/MensRights have a lot to say about Ray Rice and domestic abuse, and it is disturbing:
He defended himself from her first attack and moved away, then she came for a second attack and he defended himself, she fell and hit her head on the rail. As the research says, the strongest predictor of a woman being injured by DV (domestic violence), is her own initiation of violence.