Facts and context...
It is a fact that blacks commit a disproportionate amount of crime in the USA. I don't for a moment think it has anything to do with being black, but it's a fact. I would be very against the firing of, e.g., an anthropologist who published some work looking into explaining this fact.
But, if my employer were to say "our employee diversity doesn't sufficiently represent our country's diversity, let's do something about that" it would be utterly contemptible for another employee to say "I'm not a racist, but blacks commit disproportionately more crime in the USA."
On a purely technical level, it's irrelevant. As hiring policies presumably address candidates' convictions before inviting to interview, a black candidate or employee is clearly no more likely to be a criminal than a white one. But more importantly, in the *context* of a discussion on employee diversity, expression of this fact is completely unacceptable.