He won’t put anyone living on Mars. And even if he did, they wouldn’t last that long.

https://defector.com/neither-elon-musk-nor-anybody-else-will...

https://www.acityonmars.com/

That first article is just nonsense. The south pole can't support life? It's been supporting humans for half a century. Can't protect against radiation? Live underground like Hamas did. Have to wait 9 months for food? We do that on Earth too - if you're hungry, call a farmer and ask him to plant some food then come back in a year or two when it's harvested. We solve that problem by pipelining it, just as you would on Mars.

The South Pole hasn’t been “supporting humans”, we forced ourselves in there and survive despite the conditions in an environment that is harsh but even so considerably more hospitable than Mars.

All your other solutions are hand-wavey. Sure, let’s “just live underground” as if that’s just as easy as pitching a tent. And who on Earth is surviving nine months without any food? You’re talking as if Mars is just turning right on Albuquerque.