It depends on the bottle, but they're also more work to recycle than make new ones. Even with us running low on usable sand - there's companies turning glass back into sand at this point
The upside is you can sterilize and reuse them, and if you make them a little thicker they're pretty strong
Yeah... That's not going to work, because it turns out people will in fact pay a premium for green choices
Which sounds great, except it's a lot cheaper to lie and misdirect than to be green
And you have to be real, companies will do anything before producing less. Like plastics - the companies making them won't make less plastic just because we stop using straws - they'll pivot. They'll make them cheaper, ship them further, or cut back the straws to make more disposable cups - the only way they're cutting back on plastic is if the same processes and machinery can make a biodegradable version, if the government forces them, or if they shut down in whole or in part