I received some criticism for this question, which was fair. It was poorly thought out and poorly worded. If nothing else, I should have made Mixed Race an option to be picked and not left that to the 'Other' field - a very embarrassing oversight. But the results do tell us something. The main thing they tell us is that our subreddit is overwhelmingly white, which also correlates with earlier answers which show American ex-Evangelicals as by far the largest group. I don't know exactly why ethnic minorities are so poorly represented here - my best guess is that it is a reflection of Reddit demographics generally. If others have insights on this, I'd be interested to hear them.