The trending method of improving diversity and inclusivity is through exclusivity. This will not work.
People and groups who don't talk to each other grow further apart and trust each other less.
We should remember the source of this article, the BBC, said not so long ago: Whites Need Not Apply.
http://www.telegraph.co.uk/news/2016/06/03/bbc-criticised-by...
http://www.express.co.uk/news/uk/695312/BBC-seeking-research...
Trying to control the information?
They have also been controlling the trending #hashtags; trying to channel only certain type of discussion.
I would also hope that we can come up with a solution that doesn't involve hindering others's ability to communicate. Even if it is the simplest and most effective tactic, it seems like that's just fighting the symptoms rather than the disease.