Not any gayer than cheering on men in thongs or having "team Kai" "team jay" oh brother!
There is a difference. The amount of riots and fights that break out at sporting events (baseball, soccer, basketball, hockey, football) is huge! How many riots break out at the NY Pro or Mr. Olympia? Probably a few, if not, none. Secondly, when a bodybuilder loses most people dont lose their shit and start to beat up other fans of the bodybuilder who won. For example, Kai fans didnt start to beat up Phil fans. So the groveling of bodybuilders is actually less compared to most other sports.