Racism IS everywhere, and most of it happens subconsciously. No one wants to look in the mirror and admit that an action they took was racist, and the prevalence of false positives are probably very much outweighed by false negatives.
Even so, the a fundamental axiom of the American justice system is that it is worse to imprison an innocent man than let a guilty man go free.
Then that includes the employees and executives at Amazon and is all the more reason to not allow them to punish others for behavior that is (according to you) universal.