

The movie is about smart people not breeding. The smart people stoped existing. It wasn’t a decision to ignore smart people and listen to dumbasses, there were only dumbasses. The obvious problem with the movie is that it’s about eugenics (which doesn’t work that way), but your take changes the plot to be about something that it isn’t.
This data shouldn’t be displayed like this. This is a cumulative distribution function, displayed as a bar chart. As this is cumulative data, it should be displayed continuously with a line or an area.