I'm personally skeptical of the idea that rape is a complicated subject and that rapists rape people because they're not sure that it's wrong or because they didn't get enough "education" about "rape culture."  I don't think that's generally how it works.  I think it's rather obvious when sex is consensual and when it's not.  In general, the only real complications tend to occur whenever we expand the definition of "rape" to include things like drunken sex (not to be confused with unconscious rape) or "non-affirmative consensual sex."  Regret sex is not rape.  This is not PC, but it is true.  Smart kids can tell the difference.

I don't think Brock Turner raped the girl because he didn't realize it was rape.  He did it because he didn't think he would get caught, just as thieves steal things believing they won't get caught.

And questioning a person's judgment, by the way, isn't "victim blaming."  If my friend gets robbed in a bad neighborhood, YES, I DO ask what he was doing there.