Assuming they’re rejecting whites with records why is that a problem?
Because a much higher percentage of felons happen to be ‘of color’. Checking for criminal records has a ‘disparate impact’. It would be akin to requiring them to pass a reading or math test to get a job.
The same principle holds for women who wish to become firefighters. More women will fail the ‘drag a 250 lb man to safety than men, so the test has to go.
50% of all murders in the United States are committed by a demographic which only accounts for 13% of the total population.