Not gonna lie, I really fucking hate sports fans.
I started to post this sentiment in response a couple f days ago. "Sports" fans are not a unique, all-encompassing group by virtue of "sports;" fans of sports, as in pretty much every walk of life, have a subset of mental people who are problematic and not necessarily representative of the larger group. The fans that behave as in this case are most likely people with self-control issues; they probably drink too much, are prone to anger, quick to violence, etc., and those things are probably just as likely to be an issue on a random Tuesday as an NBA Finals game. I don't think the handful of people who stormed the Capitol on January 6th represent EVERYONE who's passionate about politics.
I'd like to think sports can still succeed without toxicity. I guess Formula 1 is good example maybe?
Formula 1 fans are the WORST in terms of toxicity, they're just more passive-aggressive about it. They may not take to the streets in a few minutes of angry passion and attack someone, but they certainly can make any outsider feel unwelcome if their opinion is unpopular/differing from their own. No matter which driver/team you support, there is no shortage of F1 fans who will disparage that opinion. Their level of toxicity is befitting the rich man's sport that is F1; they won't lower themselves to publicly burn a couch in protest, but they will certainly personally attack and gaslight dissenters of differing beliefs. I jested about it a couple of post up, but it's been 5 years, and the debate is still a heated one between fans as to whether Lewis Hamilton's record-breaking 8th title was stolen by Max Verstappen in 2021. You want toxic? Go into any F1 forum and take any opinion on the issue, and you'll be received with the kind of passive-aggressive vitriol that calls into question you fundamentally as a person.