And which end does 'near average' fall under - slightly below, or slightly above?Um... no, I don't think that's it. If you were correct then many of the other "fantasies" on those lists wouldn't be there.
Also... explain why the vast majority of dildos purchased by women are near average in size (according to a leading internet retailer)?
Again, I think many men love the idea of their partner being a "hyper-sexual penis super-heroine who can take a huge cock and love it!" ..But that's a male fantasy, not likely a woman’s
Look, man, I'm not saying that all women are size queens - I'm literally just stating that some care, some don't, and that it's across a much tighter spectrum of acceptable/useful size than men tend to worry/fantasize about. Different women get off on different things.