Marx would not be a better candidate?
(Meanwhile, many of the rights workers have gained over the twentieth century were given to them because of the fear that they will turn to communism.)
After all, human has not done much net positive thing to the Earth.
It's a fools game anyway. Erase the homo sapiens and some other primate gets spared a genocide. I have never understood the value in anthropomorphizing the planet outside of political manipulation.
Economic structures, on the other hand... ;)