From reading books like "Yes Means Yes!", "Witches, Midwives, and Nurses", or "The Will to Change".

From observing mainstream and right-wing media's treatment of sexual predators—especially the narrative of concern for their reputations, academic careers, etc.

From sitting in on violent men's groups, and realizing that the roots of their violence are common to all supposedly "non-violent" men. It's plain to see that the man who throws his cousin down a staircase, or kicks open his girlfriend's door to make demands of her does so for the same reasons that old men shout at waitresses, call female politicians "whore, "bitch", and "cow", roofie drinks, wear uniforms, hire secretaries, don't hire women engineers, and generally do the complex and pervasive work to substantiate sexist collective ontologies as a "society" of "rape culture."

You’re going to have to do much, much better than that to convince me that the American ideological worldview is supportive or even tolerant of rape. First of all, I haven’t read any of those books and I’m honestly not going to read them, so you’re going to have to summarize the case they’ve made in support of your wildly outlandish claim. Second, you’re clearly begging the question when you claim that the media treats sexual predators with kid gloves: America has a long and noble tradition of treating the accused gently. Besides, the concern over reputation only goes to show how avidly anti-rape our culture is. It’s widely known that if a man acquires a reputation for being accused of rape or sexual assault, he’s pretty much done, both personally and professionally, regardless of whether or not anything was ever proved. These accusations are taken extremely seriously and are capable of destroying a man because America hates rape and sexual assault.

I’m not sure what to make of your last paragraph. You seem to be saying that the difference between a violent male psychopath and a man who doesn’t respect women as much as he respects men is one of degree and not kind. That’s absurd on its face. In addition, the entire phrase that begins with “generally do” and ends with “‘rape culture’” is a fractal of special definitions, hidden assumptions, and ideology that’s completely divorced from reality.