Antarctica is more hospitable than Mars. The average temperature on Mars is -81 degrees F. The South Pole is generally -76 F during the Southern Winter.
On top of that, Antarctica has a breathable atmosphere, and water. Mars does not have a breathable atmosphere, and if it has water, it does not have water in an easily accessible form. Mars also has 2.5x the radiation one would experience orbiting the Earth, or approximately 35x the radiation one would generally experience on Earth.
We would literally have to destroy Earth before Mars becomes a more viable option for continued human existence.
On top of that, Antarctica has a breathable atmosphere, and water. Mars does not have a breathable atmosphere, and if it has water, it does not have water in an easily accessible form. Mars also has 2.5x the radiation one would experience orbiting the Earth, or approximately 35x the radiation one would generally experience on Earth.
We would literally have to destroy Earth before Mars becomes a more viable option for continued human existence.