There is enough material wealth in the asteroid belt to create a sustainable post-scarcity civilization. We could move out, and turn this little blue-green planet into a fucking nature preserve.

Settlements on multiple worlds within the solar system offer protection against risks that might otherwise end with the extinction of Homo Sapiens.

For the ultra rich - moving off world to escape the collapse of the biosphere is ridiculous.

Easier to “settle” the deserts of Utah of the Australian Outback than mars - plenty of O2 and no worries about ambient radiation, but a very similar environment…