Characters
Why don’t you go back to your double-wide and fry something?
— Mayor Kate Hennings · Sweet Home Alabama

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The question is structured as a suggestion but directs the other person back to a dwelling and an activity presented as beneath the speaker. Its put-down depends on social stereotypes rather than an argument. The apparently practical destination carries the contempt.
Context reviewed