I think you have misinterpreted “Diversity is pretty useful” as “Diversity courses are pretty useful”. My reading of ChristianKI’s comment is that he meant “having different people take different courses is useful” and I would be rather surprised if he thought diversity courses as such were much use.
I think you have misinterpreted “Diversity is pretty useful” as “Diversity courses are pretty useful”. My reading of ChristianKI’s comment is that he meant “having different people take different courses is useful” and I would be rather surprised if he thought diversity courses as such were much use.