This is often used as an argument against space settlement. How can they build a settlement on Mars if they can't even build a settlement in Antarctica. But do

This is often used as an argument against space settlement. How can they build a settlement on Mars if they can't even build a settlement in Antarctica. But doing anything like resource extraction or permanent settlement is simply not allowed by the antarctic treaty system https://en.wikipedia.org/wiki/Antarctic_Treaty_System https://en.wikipedia.org/wiki/Antarctic_Treaty_System, and would be heavily fought by all the signatories of that system.