Until the plastic runs out. I was confused by the comment as well but I started thinking about the disposable movement - cheaper to just make and throw away plastic utensils than for McDonald's to have flatware, and remains cheap if there's buyers for the plastic.
A good solution with unfortunately perverse incentives. Probably the solution is government bans on unnecessarily wasteful uses of plastics. The market is provably incapable of tackling environmental issues without regulatory encouragement.
Plastics are not the only waste you can gasify. Organics, cardboard, wood, paper, medical waste, household rubbish, etc. The only materials you don’t want in the waste stream are metals, glass, rock, and brick.
https://www.sciencedirect.com/topics/engineering/plasma-gasi...
In Australia plastic utensils and bags have been banned for so long you'd almost forget they existed. Was a pretty big shock traveling to other countries and seeing how far behind they are on this stuff. There wasn't even a difficult transition period, it just probably costs an extra cent to use wood over plastic.