The energy that would be spent to put some fool in a bubble tent on Mars would be better used undoing the damage to the only planet we can live on in the solar system.

Fantasizing that we're moving to Mars or Uranus or wherever is a weird psychological reaction to recognizing we are destroying Spaceship Earth.  There are no lifeboats, not even for billionaires.

We have a hard enough time colonizing Arizona and Nevada, and they have oxygen.  People would last a few seconds in the frozen wasteland of Mars.  Maybe if people stop watching Hollywood sci-film films and pay attention to the natural world this silliness would dissipate.  At the rate we are going we will be extinct long before any humans go to Mars. 

Ray Bradbury's Martian Chronicles were a fun read as a kid but it's not meant to be taken literally.