[MamaS]

Oz - I feel your anger and I can somewhat understand it. When I was adopting, the "best interest of the child" was a two-parent home with a mother and a father. As a potential single adoptive parent, I applied in writing to 23 private agencies. Three were courteous enough to bother to reply. Two of the three said "No - because you are single".
However, isn't there a difference between "religious discrimination" and "religious belief"? I see discrimination as "You can't adopt because you are Jewish" and belief as "We can't assist you in adopting because you are not Christian."
Catholic Children's Home Charities all over the UK are closing their adoption programs because the government ordered them to accept applications from same-sex couples. The Catholic belief is that the same-sex lifestyle is against God's command and to place a child in such a lifestyle would not be in the best interest of the child. So, they are refusing to place any children. Agree or not, they are acting according to their beliefs.