Wtf does that have to do with it?

There are many more books that deal with the issue to varying degrees that are both older and newer so I dont know what you are on about?

Are you a homosexual? 

 Was just commenting that I thought the chart was from the book “the bell curve” early 90s. 
Settle the fuck down mf, I was agreeing.
🧡👊🏻🍻 

 very good then.