I'm a bit confused about this post? Are you an adopter/potential adopter OP?
It seems unusual to ask for thoughts on a topic and then respond aggressively to people's thoughts. I'm not sure of your experiences of modern adoption and all it entails, it's a very complex and sensitive issue which can cause pretty strong emotions to arise, particularly for parents who have adopted their children.
In terms of my thoughts, my initial thought is that it may be a little naive on these parents parts to have drawn the media attention to themselves if they wish to pursue adoption in the future. Some may agree they have the moral high ground but unfortunately it often comes down to weighing up what is 'right' vs what will be effective in helping them meet their end goal. I'm not saying people should lie down and accept m discrimination or racism...of course these things are abhorrent and unacceptable but I feel this couple's response may be a little misguided.
Sadly their 16 failed IVF attempts don't really come into it. My heart goes out to them, I've lost 7 pregnancies...and I know the pain of being desperate to be a parent. Sadly children aren't allocated based on how much parents have been through or whether they 'deserve it' if only children (birth or adopted) were allocated in such a way it would be fantastic for many of us. Children are the main priority all the way through the process. Matching them to parents who will be able to meet their needs is the number 1 priority. I also suspect that, as it often is in media we are only seeing one side of the story which has been over simplified in order to draw traffic and clicks to the page as it makes a good story for a news outlet owned by the daily mail with a right wing bias which will look for opportunities to criticise social services while trying hard to prove they're not racist.
I don't mean to sound facetious or prickly st all...I'm sure your post came from a place of curiosity and interest, the very topic of adoption stirs up a lot of emotion, controversy and debate. Particularly amongst parents who adopted their children so I fear you may have opened a can of worms you weren't expecting here.