Short and sweet:

I'm sure that many here have read of the studies that in the past 80% of women passed on their genes while only 40% of men did.

If men were prone to rape, then many more than 40% would have passed on their genes, most likely.

Assuming all sexless men would rape, this % would tend toward 100%. Of course, what would offset this is if the children conceived by rape had a lower chance of survival (probably true) and if men had higher mortality (true today and probably even more so in the past). What would offset these diminishing factors is that men can have many more children than women can. A man can have 1000s of kids in practical terms, while women are limited by shortened fertility window and 9 month gestation.

So, I don't see the majority of men in history not procreating as being consistent with the feminist view of men as rapists.