Except, lots of people do care, especially where locker rooms and showers are involved. Maybe they shouldn't, but they do.
Fair enough. "Nobody cares" is hyperbole. Anything at all, there's someone who has strongly held opinions about it. Fluoridated water. Contrails. Which compass direction faces up on maps.
There are clearly a good number of people who care
a lot about opposing trans rights in Massachusetts. The thing is, it appears relatively few of them actually live in Massachusetts. Among people most likely to be affected by the actual laws and policies here, such as Massachusetts teachers groups, business owners, and women's rights organizations, few to none publicly supported the repeal initiative. The organizations that did support a repeal did so on the basis of rest room safety for vulnerable women and children. Had there been a single relevant incident for them to point to, one Willie Horton enabled in crime by lax progressive policies, they would have made sure we all knew about it by election day. That didn't happen.
There are, of course, problems and complaints. Someday there
will be relevant incidents. It's an imperfect and uncertain world. But what we don't have right now is a major social issue or ongoing intense debate.
They also care about boys who break track records in girls' events.
Athletic competition is an issue that the recent trans rights law doesn't directly address.
The issue of trans access to sex-segregated spaces only exists because sex-segregated spaces exist. Obviously.
The most recent trans rights law, that added public accommodation to the rights guaranteed regardless of gender identity, addressed one kind of legal sex-segregated space, physical facilities like rest rooms and changing rooms. Had it not, the status quo of legal segregation based on biological sex for rest rooms (which, keep in mind, was already an exception to equal access laws) would presumably have stood, but also would have soon been challenged in court. Against a background of ongoing national controversy over the matter, the state legislature (and two years later, the public) chose to make a policy statement.
Sex-segregated athletic competition is another standing exception to equal access laws. The situation is similar, but the issues are different. Decisions rest at the local and organizational level.
MA high schools have generally adopted trans inclusive policies regarding participation in sports at that level. As with the bathroom access situation, there has been little resulting controversy within the state.
You made a lot of good points about how silly the linguistic quibbling can get. In reality it could all be summed up in the five words of the thread title.
The claim made in the thread title, whether linguistically valid or not, doesn't matter when it comes to resolving any actual cases of any actual issues regarding trans rights and women's rights.