I don't like the implication here (i.e. white men don't care about harassment/abuse and they are also stupid.) I would wager that most anyone of any color or gender or religion in any high position of authority at any company cares first and foremost about the financial viability of the company they have been charged with running.
Many (most) "white men" do in fact care about this stuff and aren't bigots/sexists/racists. You're naive and part of the problem if you think this is a "white male" issue and not a much more complex problem. In fact, you're exhibiting the bias you attribute to these managers.