To be fair, if the gates of acceptance of HBD (human biodiversity) were thrown open, people fear there would be a lot more social friction. And I think you're right about the worldview bit, too - people not being seen as quite equal would be a major change. Gah, I wish HBDers would discuss the repercussions of acceptance of HBD instead of just sniping from the sidelines (not meaning you, now), as the mainstream won't accept it until they're comfortable with the consequences.