The current consumption patterns of humans, especially in the first world, are unsustainable in regards to meat, travel via cars, home sizes for heating and cooling, etc.
Any reduction in that consumption will be extremely unpopular and thus politically impossible under any democratic regime, whether that regime be under capitalism or communism.
Therefore to achieve sustainability and save the planet and countless human lives we will need a top down authoritarian government to force the populace into sustainability similar to how fascists would force there populace to war despite its inherent unpopularity.
An eco authoritarian accepts these two premises:
The current consumption patterns of humans, especially in the first world, are unsustainable in regards to meat, travel via cars, home sizes for heating and cooling, etc.
Any reduction in that consumption will be extremely unpopular and thus politically impossible under any democratic regime, whether that regime be under capitalism or communism.
Therefore to achieve sustainability and save the planet and countless human lives we will need a top down authoritarian government to force the populace into sustainability similar to how fascists would force there populace to war despite its inherent unpopularity.