It is almost impossible to talk about it. Powerful churches continue to insist that every act of intercourse embrace the opportunity for another human being. Their political henchmen/exploiters carry the concept over into the civil arena. The word itself, eugenics, automatically recalls the horror of Hitler's mad philosophies made manifest.
The demonization of the term Eugenics parallels the term "liberal" which classically describes today's libertarian but in current usage denotes his statist opposite.
As a start might we begin to soften the word and entertain the notion that human happiness and the chance for human survival will be enhanced if we can discover an acceptable way of reducing population?