Hi Waldo. Certainly the way the Catholic church dealt with priests who abused children is completely unsupportable and to be roundly condemmned. However I'm not sure what Fry was building up to at towards the end of that clip ... teacings on contraception in relation to the spread of AIDS perhaps ?
So guesing that the end of that clip was related to contraception, let's get that one out of the way.
If a Catholic is following the teachings of the church, they won't indulge in sex before marriage, and once married won't be having sex outside the marriage.
So you have three possible situations ... the two people are HIV-, one is HIV- and one is HIV+, both are HIV+. If they follow the teachings of their faith, where both are HIV-, there can't be any spread of AIDS. Where one is HIV- and one is HIV+ there is a spread - to one person (I'll deal with children in a moment). Where both are HIV+, no further spread is possible (OK, children next !).
The chances of children becoming infected through the mother are about 1 in 4, and about 1 in 50 if appropriate treatment is given during pregnancy, labour and to the child after birth. And yes I know that for most people in, say, Africa, the cost of treatment is far more than the majority can afford, so that leaves the 1 in 4 figure.
Now, according to a Wikipedia article, the estimate in 2002 was that around 42% of people in Africa were Christians. Not all of those are going to be Catholics though, and the Catholic church's teachings only apply to Catholics. So I'll pick a number ... say 25% of the population of Africa are Catholic. IF they folow the church's teachings are you really going to try and tell me that those teachings are responsible for the spread of Aids in Africa ?
Of course if the Catholics don't follow the church's teachings on restricting sex to marriage, then there is nothing to stop them using contraception if they want to ... they