So true, and so important to hit back with. To this point, population growth is the biggest driver of any human impact on the environment. That said, US population growth is driven by immigration, legal and illegal. So, if 'environmentalists' on the left truly care about the environment, they would support stopping illegal immigration, and putting reasonable limits on legal immigration. They don't, and won't, because their 'environmentalism' is not driven by a desire to preserve nature.
No population growth but government waste. Soviet Union, trillion budget for illegals etc... all these increase in exponential any foot print.
I'd go further. Take a look across the globe at every advanced, industrialized country that is reasonably free. You will find that population growth in all of those countries has effectively stopped if you eliminate immigration. In fact, in some countries, (Japan is a great example), population is actually decreasing at an alarming rate. If these morons really were "environmentalists", they'd be pushing policies of freedom and free enterprise to bring the shitholes of the world up to our standards of education, prosperity, and liberty because only prosperous and free people have the luxury of giving a damn about the 'environment'.
Western-style prosperity would really be a two-fer for the Gaia worshipers, as they'd be able to recruit more folk to their religion, and also the population of the planet would finally stabilize, and most likely decrease significantly, thus putting less 'stress' on poor old Mother Earth.
Funny how this is the exact opposite of what leftists actually support. Every leftist policy is one that will stifle the human need for both personal and economic liberty.