We could likely skip some of that via genetic engineering and other medical methods. But I'm also referring to cultural and technological evolution.
BTW... if we don't transition off fossil fuels in the next 50-ish years we are going to experience some of Ye Olde Tyme Evolution here on Earth. Personally I think Mars would be a better place to be in that scenario. There was a sci-fi film called Alternative Three made about that.
Evolution is usually very unpleasant for the individuals being naturally selected away. How is this a good thing?