Are you suggesting that Watson's statements were not based on evidence?

In the controversial comments that led to his retirement, Watson claimed of those in Africa:

‘‘all our social policies are based on the fact that their intelligence is the same as ours – whereas all the testing says not really.''

The lower average test scores of Africans is surely an undisputed scientific fact.

Whatever you think about Watson, in this case, he had the scientific evidence firmly on his side - as far as any scientific issue was concerned.