Re: Something smells wrong
You mention research, but you fail to mention one of the most striking results--that (US) conservatives and libertarians show a MUCH lower level of bias than liberals. I assume this surprises liberals, but there is a simple explanation: conservative and libertarian thought is strikingly individualistic compared to liberalism. Therefore, we don't seek to identify people as members of a group unless such a grouping is relevant to the task at hand.
During orientation at Google, they did a couple of exercises designed to point out unconscious bias. Things like names vs professions. The exercises caused me a noticeable level of pain, as I could not understand what correlation I was supposed to be seeing. When they did the reversal, I figured out what was going on. That's not the only time I've had such experiences.
But, since I'm a white guy, you know I'm racists & dismissive towards women.