Eugenics is an outdated scientific principle which states only people with good genes can only breed and pass on the good genes to improve the genetic quality of humanity. Early concepts begin in the 400 BCE as Plato proposed it and the Spartans practiced it.
Francis Galton, a relative of Charles Darwin, defined the idea after reading his relatives theories on evolution. Eugenics slowly became an academic discipline at several universities and colleges in the United Kingdom and the United States. Eugenic policies became the mainstay of governments and received funding from several sources.
However, by the end of World War 2, eugenics became strongly associated with the horrors of Nazi Germany. Because of it, governments slowly phased it out to disassociate from the horrors of Nazi Germany.
What if the idea of eugenics remained popular and running? What would happen if eugenics programs still remained active and spread around the world?