There are no factual points that can be countered here, but it needs to be pointed out that recycling is very much a big part of "the answer". This is very much an area of research and there are lots of data to support this.

While we certainly should try to minimize unnecessary packaging, whatever we use should absolutely be recycled as raw material whenever possible. Recycling plastics is difficult because it is such a wide term, but if comparable countries recycle five times as much then surely improvement is possible. Hate on plastic bottles all you want but when 90% is recycled, at comparably low cost, it's not clear what the alternatives are.

The obvious alternative to single use (recyclable) packaging is re-filling containers. That's what everyone did half a century ago. But the food supply chain is rather wasteful as it is and sealed packaging was revolution when it came. Producing food for humans has huge energy costs by the use of fertilizers and diesel. It might seem counter intuitive but burning plastic containers is always better than burning wasted food.