You have to fuck up our planed really badly to make Mars better than Antartica. I don't get this argument - what really can happen here for Mars to become more

You have to fuck up our planed really badly to make Mars better than Antartica. I don't get this argument - what really can happen here for Mars to become more appealing? Nuclear winter? Virus outbreak? Zombie apocalypse? Antartica still would be better by a solid margin. You can get water reserves with little effort, it would be easier to clean polluted air than to produce it out of nowhere and temperature range is still much better in any case. What's the point then?