People are naturally defensive when their biases and prejuidices are highlighted, leading to the trend of softening the blow with "everyone stereotypes" sentiment. However, this is quite dangerous as it only reinforces the biases, after all, as humans, we're more likely to continue our behaviors if others act the same. Likewise statistics might skew behaviors, where showing inherent discrimination may either galvanize or encourage offender to continue their behaviors. Framing messages however towards a solution rather than an unwanted solution however might lead to desired outcomes—women deserve the same pay OR black people are just trying to live.
http://digest.bps.org.uk/2015/04/why-message-that-were-all-prone-to.html