While I'm a big supporter of fixing earths problems rather than attempting to relocate to a far more hostile world, I think becoming an multiplanetary species is inevitable and we should probably crack on before we do some damage that cant be undone.
I love the idea of 'roughnecks' living on the planet and raising the first generation of kids who would inevitably feel even more disaffected as the generations before them. Which is just a cyclical tradition. Right?
Also, 2 baskets of eggs is frequently considered to be a wise choice.