Discussion Pollution 

A person entering a, usually controversial, discussion with the most surface-level, stereotype-based, and hyperbolic arguments possible. Their take then becomes the easy go-to meme response that spreads, resulting in a form of Flanderization for the discussion as a whole, cutting any nuance or complexity to the discourse and adding undeserved importance to it.

Some of the more prevalent examples of this are in discussions of Fermi's paradox, where the go to is, "Aliens don't talk to us because we're stupid," despite how much it's implying about the aliens in question. And arguments about America not using the metric system, with the reason often being, "Americans are too stupid and lazy to understand it," forcing a stereotype and ignoring any actual reasons the US hasn't switched over.
Since these arguments are often done for quick validation, they often have little to no research backing them either due to overconfidence of being right, or an unconscious fear of having to think complexly.

commenter 1: omfg why don't Americans just switch to metric already, why are they too dumb to do government.
commenter 2: You could leave and google how states' rights work, fucking discussion pollution.

Discussion Pollution by dirtwashere April 9, 2023