Y’all always love eugenics jokes. And like always, before you get pissed about me telling you that this is a eugenics joke, yes, equating evolution with intelligence is reliant on eugenicist notions of natural human ability and evolution as a process that picks out the “bad” or “weak” elements of a species.

Darwinism is a concept that only refers to how traits are passed on through physical reproduction, not what normative values those traits have in terms of “good” or “bad.” What you’re referring to is more akin to social-Darwinism, which was a pseudoscientific concept that emerged in the late-nineteenth century as a catch-all rationalization of social inequities along the lines of arbitrary social values like industriousness, naturalized class, racism, ableism, etc.

Unsurprisingly, it was popular among Nazis. I hope you understand the irony in applying it here to make fun of a person who subscribes to an anti-science concept promoted by fascists.