Moral Pollution: The phenomenon whereby, by virtue of its physical or conceptual proximity to someone or something immoral, an idea, a person, or an object is considered metaphorically contaminated. https://bit.ly/3kUKHb9 by @PamelaParesky
Here’s an example:
people who insist on running Linux bare metal on M1 Macs, because to run in a hypervisor on top of macOS will give them moral cooties.
But I assume what the author had in mind is, eg, The Cosby Show...