Actually, that isn't true. Homosexuality is inherently deviant since it is completely outside of the heterosexual norm.
A lot of the prejudice against gays originated in Biblical times...
Hmmmm, I smell a little whiff of anti-Christian bigotry in the wind.
...when it was imperative to be fruitful and multiply in order to ensure the survival of the tribe, or the species.
Bad news for you, the species still needs to survive.
Any activity that didn't lead to reproduction was bad, because it didn't contribute to the survival of the group.
Actually, that isn't true, activity that God termed an abomination was bad.
These days, when we have too many people crowding the earth...
Oh I see, next you're going to tell us that we all drown because the Earth is warming all because of us. Sorry, but Malthus has been shown to be wrong again and again and...
The [Roman Catholic] Church still officially forbids any kind of birth control, including contraceptives, doesn't it?
Actually, they do permit the Rhythm Method of conception control. If you wish more information on the practices of the Roman Catholic Church, I'm sure there are some Freepers who could supply that for you.