People in the 30s were afraid of anyone who looked slightly different to them because they might kill humans and take their jobs. And then some fucks actually killed humans and took their jobs out of fear said humans might kill humans and take their jobs.
People were knew of robots in the 1930s. They were afraid of them killing humans and taking their jobs.
http://www.slate.com/articles/technology/future_tense/2011/11/robot_hysteria_in_the_1930s_slide_show_.html
People in the 30s were afraid of anyone who looked slightly different to them because they might kill humans and take their jobs. And then some fucks actually killed humans and took their jobs out of fear said humans might kill humans and take their jobs.