I don't see fear of sex as Western so much as Christian. Roman Christianity was (and to some extent still is) a kind of extended pathological interlude in the Western tradition - the bastard offspring of a patriarchal Abrahamic and tribal tradition crossed with various shades of Platonism, and given an added boost with a shift towards good old fashioned oligarchic imperialism hidden under a pseudo-spiritual sugar frosting.

If I wanted to play devil's advocate (hmmm...) I'd suggest that it's actually based more on a middle eastern world view.

That's not quite fair because Rome and Greece had a notoriously patriarchal strand. But there was also a more open strand in certain times and places that has been very influential politically and socially in the West, but remains almost totally absent from the Abrahamic mindset even today.