Its called eugenics, and I wouldn't be surprised if the creepy clowns are a part of that movement too.
http://nrgiseternal.com/index.php/topic,2035.msg22889.html#msg22889
https://en.wikipedia.org/wiki/Alberta_Eugenics_Board
https://en.wikipedia.org/wiki/Compulsory_sterilization_in_Canada
"This new safe test looks for baby DNA in the blood of the mother to check for markers of Down's Syndrome" - often afterwards Mothers when they learn that their baby has Down Syndrome choose to abort. No clowns here Noone....
Almost seems like social engineering, its an easy moral manipulation using the medical establishment to influence the decision to abort.
I dont know much about any particular medical conditions, however, if one looks into a new developing field of genetic study called epi-genetics there you might find the links between our environment and the human phenotype expressions that are being discriminated against.