Almost all of my hobbies have always been other-people-proof by design. I'm antisocial, so I've always pursued hobbies that can be done alone and offline, like hiking, reading, target shooting, and baking. Sure, social justice zealots and troons are shitting up the literary world with propaganda, and there's always social justice drama in YA and sci-fi publishing. None of that can stop me from picking up and reading a Jane Austen book or whatever. Something like 90% of what I read has always been from before the 1950s anyway.
I guess maybe gun consoomers and panic buyers driving up the cost of ammo has made it harder to afford target shooting, but I can't really say that's ruined my hobby or anything. It's just driven me to hand reload more of my own ammo (although even that is ridiculously expensive, and good luck getting tips for the most popular handgun calibers in a timely manner).
I do feel bad for people with more social hobbies like tabletop gaming or knitting, of all things. You guys have it rough.
2. Baseball. It was my passion as a kid, but got ruined by the time I was in high school. "Baseball people" are either the nicest people you've ever met, or the most insufferable, arrogant, favoritist assholes you've ever met.
On a professional level, the soul of the game is gone. It's obsessed with pointless StatCast and Sabermetrics autism. There's also conflict between those who want to uphold the so-called "unwritten rules (that is, being classy and sportsmanlike) and those who want to showboat with batflips and taunting on the field. And every postseason is always the Yankees, Dodgers, and Astros.
I'm a Cleveland fan, so baseball has only ever meant pain to me to begin with. I agree, though, the slavish devotion to analytics takes most of the heart out of the game. The starting pitcher will be throwing a one-hit shutout, but they'll take him out in the middle of the 9th inning because he's at 112 pitches, the hitter is a lefty, and the humidity is 84.5%, so the analytics say one of the relievers is a better matchup. Fuck off with that. They have a problem where only 4-5 teams are reliably competitive in large part because of their shitty salary cap system, and they decide that what the game really needs to save it from irrelevance is a pitch clock. The fuck out of here. I can't say it's ruined, though, because watching a live game is still a fun experience.