So do you believe humans are, at their core and regardless of system, predisposed to destroy the planet?
Taking this frame of thinking to its inevitable end, you're either going to mow down as many people as a first step towards omnicide or you've given up and you're resigned with the destruction of the world, proving to yourself that if you aren't willing to do something to "improve" things, it must be human nature. This is obviously not me saying to go do an omnicide, but your blackpilled frame of thinking is self-enforcing. If you felt like there was a better solution out there and that socialism was a direction towards less destruction such that generations after us could keep moving towards something better, you'd be able to help build it, but you don't, so you are chained to your doom, determined to chain us with you. The handful of capitalists busy fucking the world thank you for giving up.