It’s just a bad material that’s cheap to make things out of.
Once used, to my knowledge, it can’t be reused as the same thing, so they “recycle” it into road surfacing etc, which I’m sure doesn’t end up fragmenting into tiny bits over the years and ending up in water sources…
And I’m not sure there’s a good way to get away from it completely. Even drink cans have a small layer of plastic inside to stop it reacting with the metal. Glass is probably the most environmentally friendly (if you just wash and reuse), but a bitch to get it back in one piece.
Time to tax the ever loving shit out of plastic tbh. And yes, prices will go up, but you know what? They go up anyway. They can only take as much as we have, and they’re already taking it.