We are lucky. Any dumb motherfuckers that end up on Mars thinking it’s some sort of viable alternative to Earth are in for a rude awakening. It’s basically a rocky, dusty Antarctica with effectively no water or air, absolutely no life (so… nothing to eat or to use to make shelters or medicine), and zero protection from ionizing cosmic radiation. It’s basically the Moon but further away (and thus with depressingly low sunlight levels).
The maximum life expectancy for Mars colonists would be the duration of whatever food and water they were able to bring. Odds are they’ll die much sooner than that. Procreation and propagation of our species there is simply out of the question.
Mars is a dead-end for humanity. The severity of calamity necessary to make living on Mars more palatable than Earth is essentially world-ending. Like a collision with another planet or being swallowed by an expanding Sun. It’s not even a remotely better option compared to massive global warming, nuclear war, or even an extinction level asteroid strike.
So of course the moron techbros running the world now think it’s a good idea.