Not if you got the plastic using fossil fuels and extra energy. Which is the cas...

Not if you got the plastic using fossil fuels and extra energy. Which is the case for most of the non-degradable plastic. Add to it that we are nowhere close to replace various types of plastics with materials obtained from non-fossil fuels.

Obtained from cellulose https://en.wikipedia.org/wiki/Cellulose_acetate does decompose fairly quickly in the soil.