There is an argument against one part you wrote. "There is never a good reason not to tell the truth about these things, this is the result of what happens when you go down that path."

Let's make a hypothetical that a researcher has come up with a good way to measure intelligence/violence and concludes that indigenous Australians are way below everybody else in intelligence and way up in violence. What is there to gain to tell everybody that and what is the potential downside.

They can get extra resources in school to help them and people can resent them for taking more resources from the school without paying more tax. So there are opportunities to help them but can also create tensions. I agree that we should always tell the truth but I can still see the point of the other side.

So as a hypothetical, if there are differences between different people, should we tell everybody. You don't need to answer me, just a fun concept to play with.

For your hypothetical, that research would probably explain that averages in lack of achievement are likely to be caused by the intelligence differences, instead of some unconscious bias. Yes, I think it would be useful because it helps ensure that inaccurate conclusions are not drawn.