It's a South Park reference. It very much is equating the accent with stupidity ...

		PessimalDecimal 46 days ago \| parent \| context \| favorite \| on: 2026 tech layoffs reach 45,000 in March It's a South Park reference. It very much is equating the accent with stupidity and backwardness. In their defense, they make fun of nearly everyone. But they definitely were mocking White Southerners there.

In the episode, it's not what I'd call a southern accent.