"I cannot make out what Ms Riches & her co-objectors meant by this:"
Me neither Mike - the Church and its hangers on's attitude to sex an procreation has always been beyond me.
I was quite fascinated by the suggestion that rapists tended to be impotent and the rising cambers (should have read numbers) of homosexuals were a conspiracy because "there couldn't be that any physically deformed people in society."   
We are now seeing a rise in religious fundamentalism on the subject - perhaps time will reveal all.
Jim Carroll