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, not what normative values those traits have. What you’re referring to is more akin to social-Darwinism, which was a pseudoscientific concept that emerged 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 subscries to an anti-science concept promoted by fascists.