Please read the writings of the prominent environmentalists. Many of them want humans to hurry up and go extinct. Not necessarily in so many words, but anyone who advocates a return to the hunter-gatherer lifestyle is in fact calling for the murder of the billions of people who are alive only due to agriculture, of a kind which depends on modern energy sources.
You are applying extreme positions held by a minority to broad groups of people who don't hold those positions. To imply that being an environmentalist means advocating a return to hunter-gatherer lifestyle is absurd.
Honestly it's starting to sound a bit hypocritical given your original statement.
I'm not simply talking about openly declared human-extinction advocates. The death by starvation of billions is a logical consequence of perfectly mainstream environmentalist platforms - pushing for the elimination of nuclear power, factory farming, pesticides, genetically-engineered crops, and other technologies which make our historically-unprecedented abundance of food and other necessities possible.
I simply don't care about anyone's stated goals. What I care about is the logically inevitable results of the changes they are pursuing.
Please read the writings of the prominent environmentalists. Many of them want humans to hurry up and go extinct. Not necessarily in so many words, but anyone who advocates a return to the hunter-gatherer lifestyle is in fact calling for the murder of the billions of people who are alive only due to agriculture, of a kind which depends on modern energy sources.