Kasey Thomason and her daughter Annie paid $1,000 per ticket — two rows from courtside — to watch the Indiana Fever play the Atlanta Dream on August 16th. With about 1 minute and 30 seconds left in a five-minute overtime period, a security guard pulled them aside and gave them two options: cover up your t-shirts, or get escorted out of the building.

Their offense? Wearing shirts that say "XX" and "XY" on them. At a women's basketball game.

Kasey wore an XX-XY Athletics t-shirt with the letters printed in stars and stripes. Annie wore a Riley Gaines collaborative piece with "XX" on the front and "For the Girls" on the back. They'd come to support Fever guard Sophie Cunningham, who has been one of the most outspoken athletes against males competing in female sports. Cunningham had plenty of supporters in the Atlanta crowd that night — and several of them got the same treatment.

The security guard told the Thomasons that other fans were "offended" by their shirts. So the league's solution, at a women's sporting event built on the premise that women deserve their own league, was to force two women to cover up their belief that women deserve their own league.

For reference here is a picture of Kasey and her daughter Annie at the game before security forced them to cover up their shirts:

This marks the second time in less than three weeks that fans supporting Cunningham have been confronted over their clothing at a WNBA game. Meanwhile, at the same Fever-Dream game, another fan was allowed to sit courtside wearing a pro-trans shirt with zero interference from security. That double standard didn't go unnoticed.

The WNBA eventually released a statement through a spokesperson: "The WNBA is aware of interactions at last night's game in Atlanta in which fans were asked by league security to cover their shirts. This should not have happened." Which is the institutional equivalent of getting caught on camera and issuing a hostage-video apology the next morning.

"Should not have happened" is doing a lot of heavy lifting in that sentence. It doesn't explain why the league's own security staff believed — for the second time in three weeks — that pro-women messaging violated arena policy. It doesn't explain why a fan wearing a pro-trans shirt got got featured on the jumbotron at the same game while Kasey and Annie were threatened with expulsion for their XX-XY gear.

The WNBA exists because of Title IX. The entire league is a monument to the idea that biological sex matters enough to give women their own competitive space. Every dollar of revenue, every broadcast deal, every ticket sold — all of it rests on the assumption that women's basketball is a category worth protecting. Kasey and Annie Thomason paid $2,000 combined to sit courtside and agree with that assumption. The league thanked them by threatening to throw them out.

XX-XY Athletics, the brand both women were wearing, has become a cultural flashpoint precisely because it says what the WNBA's own existence implies: chromosomes determine the category. Riley Gaines, who collaborates with the brand, has made this her public mission. Sophie Cunningham has taken the same stand from inside the league itself. The shirts weren't provocative. They were stating the biological premise the league was founded on.

So the WNBA has a decision to make. Either biological sex is the reason the league exists — in which case fans affirming that fact should be welcomed, not policed. Or biological sex is irrelevant — in which case there's no justification for a separate women's league at all.

Pick one. Both answers end up in the same place.