I was addressing your comment about the necessity of diversity in the population as in your false claim that "You cannot have diversity of choices if you do not have diversity of population."
I thought I made that pretty clear by directly quoting you (not the author). If you can't figure out what my comment on the Enlightenment has to do with your comment then I cannot help you.
And you need to go further than the first google result. The Enlightenment began with the scientific revolution of the 16th and 17th centuries. 
And you dodged the rest of what I said so I'll leave you with this bit of advice: cure your lack of knowledge before you pretend to superiority.