It is well known that Elon Musk is very concerned with sustainability and green technology to help the environment. Why then, does he also champion higher population growth and a growing population. What most people don't realize is that one is dependent on the other. Green technology and the technology to meet Musk's other goals such as making our species multiplanetary requires a growing economy. A growing economy requires growing populations, and growing populations require economic and cultural hope. You could say that Elon Musk's true enemy is the hopelessness created by leftist policies and socialism in all it's forms. This could be why we see him trending more and more libertarian as he is presented by more and more broken policies on the left and cultural pushback against freedom and hope driven goals. The reason Musk is in conflict with the left despite both of them championing green technology and a clean environment is because the left is not actually interested in a clean environment. The left uses concerns over the environment to push for authoritarian and socialist policies to fuel their megacorporation dominated economy that centralizes power and gives them complete social and economic control. Green socialism was never about the planet or global warming, it was always about control. Libertarianism has far better solutions to the problems the left champions and better solutions for our species as a whole. If one wishes a clean environment and the long term survival of our species we need improving technology and a strong economy, something Musk understands.