Have to disagree with you here when you say "only the left", it is statistically 100 percent, but that is due to round-off...actually 99.9992 percent of the left is obsessed with race (the other 0.0008 percent believe in talking rocks that communicate with other worlds).
DD
You forgot to take overlap into account. The total of racist lefties that ALSO believe in talking rocks that communicate with other worlds is probably at least 12%