Then why does the Catholic Church make such a huge thing about sex then!   Why is Mother Teresa heading for sainthood! Poking its nose Into people's private lives and finding sin in sex wherever it can has been the time-honoured numero uno blunt instrument of control over the flock for centuries. Lessee, masturbation, gay sex, anal sex, using contraceptives, having impure thoughts, gay marriage, abortion, divorce, lusting after you neighbour's wife, etc., all sins, some for all time, some for at least nearly all of the last two thousand years. The Church will find unsavouriness in sex wherever it can (unless it's covering up child abuse, of course). I think that refusing to accept that the one and only non-sexual conception in the history of humanity hasn't got everything to do with putting Jesus above sex is highly disingenuous. The gospels didn't even have to say it.