It is worth keeping in mind that plenty of environmentalism over the past century has been specifically hostile to the existence of humanity. Either they don't

It is worth keeping in mind that plenty of environmentalism over the past century has been specifically hostile to the existence of humanity. Either they don't care at best whether humanity continues to exist, or they view humanity as a blight (on a supposed innocent or pristine nature) that needs wiped out. It's not an uncommon view to see espoused today, and it gained traction over five decades ago in the environmentalist movement.