I mention the IAT specifically b/c it can be used in "teaching people about unconscious bias" as a coercive tool to prove to people that they are racist i.e in

I mention the IAT specifically b/c it can be used in "teaching people about unconscious bias" as a coercive tool to prove to people that they are racist i.e in the context of OP: "to help people who don't believe they are racists". I have no problem with teaching accurate information wrt bias; but on the other hand, that metric doesn't impel people to label themselves racist, which seems to be a goal.