Are we sure that this idea that baseball is a dying vestige of some bygone era correct? I mean there were twenty-six teams that averaged more than 20,000 in attendance last season. That's eighty-two events annually. Annual attendance in 2024 was just over 70,000,000 in MLB, 17th largest figure historically, and even on an average per game basis, far, far larger crowds than in any decade other than the 2000s and 2010s.
I'm not naive to the belief that baseball struggles on TV, but that's nearly true with everything these days.
Also, based on my career, I'm around tons of high school aged kids, and anecdotally, I'd say that while kids don't know much about baseball, they are very curious about it. They want to play it, pay attention to it. My impression is that it's kind of novel for them.
I get that owners and players want to expand the sport for money reasons, but they are going to have a hard time convincing me that it's in an adapt-or-die situation.