Both your perspectives are supremely short-sighted. There are enough good films coming out to literally watch 1 or 2 every week. Of course if you limit yourself to superhero slop or Hollywood slop then yes, you're gonna have that impression.

It's entertainment; what's lost if someone decides to only consume stuff from before a cutoff point? As long as they're finding stuff they enjoy, they've already "won."

There's a level of involvement that most people have when it comes to entertainment. The more difficult that finding something you'll enjoy gets, the less interested people will be. Discovery is not a fun part of consuming media for most, I'd imagine

what's lost when culture becomes homogenized and commoditized? quite a lot actually

Unfortunately it is an "Eff you, I got mine" thing. If someone's already resigned to sticking with things 20+ years old, they're not affected by media being bad. It's on culture to get people to buy in, not on individuals to contribute to voting on what new media is good or bad.