Hurry up and watch JT’s video on dysgenics and eugenics, as YouTube has shut down another incarnation of it. (YouTube presents a deceptive “This video can’t be played here” message first, intended to dissuade people from watching, but simply then click the “Watch on YouTube” link after the message):
https://www.youtube.com/watch?v=aDLLgvWhiGs&bpctr=1511993244