“The massive growth in the human population through the 20th century has had more impact on biodiversity than any other single factor.”
—Sir David King, science advisor to the UK government

“We need to speak more from the question of how many not who. To get out of the thicket, we need to help people understand that cutting immigration is not anti-immigrant and not tied to nativism or racism, but tied directly to our ecological future.” © Dave Foreman Man Swarm, How Overpopulation is Killing the Wild World

• The core assumptions of rewilding, that most of the world ought to be wild and that modern humans have an ethical obligation to protect and restore wild nature, require that global population be stabilized and reduced as quickly as possible in a complex world.
• Biodiversity loss, climate change, pollution, deforestation, desertification, and water and food shortages are all a consequence of unsustainable human population levels and consumption.
• The current population growth trend toward an ultimate stabilization of 10 billion would render rewilding impossible and result not only in biodiversity loss but massive extinction of the species rewilders seek to sustain and restore. In view of this, the goal of global population policy should be to stabilize the world’s population and descend toward a goal of a sustainable population of 2-3 billion or less.

https://rewilding.org/our-programs/population-growth/

Reservoirs are drying up as consequences of the Western drought worsen

No mention (because it is taboo) of massive immigration due to open borders and unsustainable legal immigration as an underlying cause of the emptying reservoirs and loss of farm production due to transferring of precious water to cities.

https://www.chron.com/news/article/Reservoirs-are-drying-up-as-consequences-of-the-16304219.php