Bingowings said:

As I say rape as an exclusively sexual term is a modern parlance artifact, extreme as it may sound it is a correct use of the word from a certain point of view.

But the modern parlance renders it incorrect, regardless of one's point of view; archaic usage of a word doesn't really amount to anything at all. If I say "I'm going to participate in a gay parade," it means something completely different today than it did fifty years ago, and appealing to the archaic usage doesn't minimize the fact that it basically amounts to self-misconstrual, etymology be damned.

(BTW, I'm not comparing gay parades to sexual rape, except in the commonality that both terms have taken on very nuanced meaning in this day and age, and using them in a manner commensurate with the old usage only results in communication breakdown and misunderstanding.)