Earlier quoted context omitted.
I... This seems pretty different than what Haidt is painting it as. This is saying sociology research should communicate if it engaged with communities that haven't been a part of this sort of research in the past.
Well, it's explicitly giving an advantage to submissions that engage with these diversity goals. Favoring research of understudied populations makes a lot of sense and is necessary. Favoring researchers based on their own personal diversity metrics is controversial. Favoring research whose findings support specific diversity-related desired outcomes is dangerous (and the policy may do this in practice).
I honestly don’t understand your problem with this.
Historically, the majority of humanity was not a part of social science study. For example, economics has a tradition of drawing conclusions about the labor market based on data only on American white males (literally). This has been changing and it reveals blind spots in our previous understanding of the economy.
All that this policy change seems to be doing is encourage researchers in social psychology to work with a wider subpopulation than, for example, American undergraduates aged 18 to 22. It does not mandate anywhere what their findings should be.
What is so bad about this?