In some groups IQs are going down. In others IQs are going up. In evolution variation is the name of the game.
High IQs tend to match-up with other high IQs. Low IQs tend to match with other low IQs.
I do believe the low IQs are currently reproducing at a higher rate than the high IQs.
Maybe in the future the groups will be different enough to be identified as different species. Maybe one group will destroy the other. It’s happened before. It will happen again.
Idiocracy was already made several years ago.
I think we're already there.