Why did everyone turn on Chiefs? Explaining hate for sports dynasties | USA Today
The question isn’t so much whether this phenomenon exists in sports fandom, particularly in the United States, but why. And while psychologists have a few theories, they say research doesn’t provide a clear answer.
“We like underdogs. We like novelty. We like things that are unexpected,” said Tufts University psychology professor Sam Sommers, who co-authored a 2016 book on fandom titled “This is Your Brain on Sports.” “I think that’s my best sort of hypothesis for why it is: That it gets old quickly.