[bluGill]

Note that mars is the most likely candidate to make self supporting. I too am not sure if we can, but everywhere else in our solar system is harder.

[palata]

That's my point: it's clearly extremely difficult (much harder than surviving on Earth), and it's still infinitely easier than going in another solar system.

The vast majority of people won't go to Mars, but will pay the consequences of climate change, biodiversity loss and fossil energy. Still not only nobody cares, but many keep dreaming about Mars.