Why immigrate to Mars?

It can be said that this issue is not currently considered by scientists at all, let alone on the agenda, even if the end of the world is coming! Because we humans are still unable to do it with our current technological level, and no planet suitable for human survival has been found in the solar system near the earth, and the same is true for Mars. If you go further, you will enter the interstellar space measured in light years, which is even more elusive for humans! Even if humans can realize their dream of migrating to other planets in the future, it will only be the luck of a very small number of people, because it is technically impossible and impossible to achieve large-scale interstellar population migration! And most of the remaining people have no choice but to fend for themselves on earth.