I think the article makes some good points but it keeps jarring me with the "impossible to recycle" statements.
There is "recycling" as implied by the author of the article which is that the material is converted into feedstock to make the same material again, there is "recycling" which can be defined by "is used again", and their is "recycling" which is defined as "it didn't end up in a landfill or ocean." The nuance is important.
For example, you can chemically break down plastic by exposing it to high heat in an oxygen free environment (like a nitrogen)[1]. For many polymers this will reduce it to essentially various long chain polymers, some water vapor, and some left over carbon. You can incinerate plastic in a closed loop exhaust system and extract net positive energy from it. You can mechanically decompose it (think shreedding) and then either ultrasonically or thermally bond into engineered materials (which are not yogurt cups but can provide structural insulation for example)
I had thought at one time that using an engineered material approach you could make things like picnic tables for Forest Service campgrounds (they would be extremely durable, insect and weather immune, and difficult to burn) however in discussions with people who could advocate for such a program I learned that they often just re-used lumber they were clearing as part of the forest management mission for such things so their materials were "free" to begin with. Conceptually though I still like the idea.
[1] https://onlinelibrary.wiley.com/doi/abs/10.1002/app.1974.070...