Recyclable is a scam perpetuated by the plastic industry. You should be using reusable glass which is expensive to replace but cheap to refill.
After fossil fuels are done, the reduced carbon in the waste stream (including plastics, but also cellulosic materials) will become more valuable as feedstock for various chemical processes. Garbage refining will be a thing. It will be an aggressive chemical endeavor, more akin to petroleum refining than to recycling.
The only people that have plastic in this future society are extremely wealthy and poor people "mine" old landfills looking for plastic to sell.
Homes that don't have electric or district heating are often heated with oil anyway, might as well have some utility to that oil before it's burned?
The catch is they're obscenely expensive.
What does this actually mean and what are you basing it on? Without any sources or references it reads a bit like FUD.
The gist: similar to Big Tobacco, etc., internally with the plastics industry, there seems to have been a much greater degree of pessimism about the long-term economic viability of plastics recycling, but it was sold to the public anyway via ad campaigns and lobbying to forestall regulation or legislation limiting plastics as public sentiment was shifting towards a greater sense of environmental awareness.
Also there are several different types of plastic that do not melt together, or do not melt at all, and can't be easily recycled or reused. It also degrades and becomes more toxic on every cycle and, unlike glass, health safety of recycled plastic cannot be guaranteed so to package food the only safe option is to make new plastic.
Some countries like Sweden and Finland use incineration to such extent that they have a lack of domestic waste and have to import it [0].
While we might think that much of the world's plastic waste is recycled, only 9% is. Half of the world's plastic still goes straight to landfill. Another fifth is mismanaged – meaning it is not recycled, incinerated, or kept in sealed landfills – putting it at risk of being leaked into rivers, lakes, and the ocean.
I misworded my first sentence, I meant that 80% either goes to the landfill or it's not recycled, but apparently it's more like 70%.
You would have to be naive to believe that executives in the petroleum and plastic industries are unaware of how little plastic is actually recycled rather than complicit.
If recycling were widespread, you'd expect the vast majority of products to be made with recycled plastic.