Pretty dumb. Mars is not fit for human life. It may have been, but no longer is. An inordinate amount of energy would be needed to change Mars’ environment to one that can sustain the complete ecosystem of Earth, including plants, animals, bacteria, viruses.
And if this were possible, it would not last long. The forces of nature on Mars would soon send Mars back to its present state.
Humans are not optimized for living on Mars. Humans would not thrive. It would take hundreds of thousands of years of succeeding generations for a noticeable adaptation. Meanwhile, the humans living on Mars would be out of their element and in a state of constant stress for being in an environment for which they are not adapted.
It is possible for man to live there, but not on some terraformed ball.
Mars has more than enough resources to construct massive enclosed spaces that are also partially underground, and more than enough water to people ,plants and animals to live.
They wont have oil or petroleum, but there might be lots of natural gas. Also nuclear power is a given, as well as solar beamed to the ground via microwaves, maybe some wind power.
It will be a constant challenge to keep it going as everything will depend on man, though.
“Humans are not optimized for living on Mars.”
And we are not optimized for Earth either with 2/3rds of the planet covered with water where are the human gills, webbed feet; our eyes are also wrong for night vision; we cannot run as fast as most animals; our sense of smell is atrocious; the list goes on.
Humans are a generalized species and can adapt to many environments - so many assumptions that are not proven only speculated about.
So we may as well go live somewhere where we are also not optimized ... or do you want to wait here for the inevitable ELE?