Is it really feasible to immigrate to Mars?

Yes, there are always feasible ways, but not now, and even humans will not consider transforming the climate of Mars. At present, it is more reliable to build a closed base. With the current rocket technology, conservatively calculating the cost of sending 8,000 tons of materials to Mars is the rhythm of hollowing out all the wealth in the world. What is more tragic is that 8,000 tons of materials are still a drop in the bucket for building a micro-city. In other words, when all human beings try their best to do this, all people will be. If all mankind could really unite, there would be no war and hunger in the world a long time ago. If all mankind can unite, it will only be when the earth is no longer suitable for survival, but then it will be too late to study immigration into space. Moreover, it is very likely that with less and less resources and worse environment, more countries will think of a cheaper and more feasible scheme to destroy other countries instead of acting together. Of course, all this is based on the current rocket technology, but for space technology, rockets can only be improved, and it is difficult to find other ways to completely replace them. I don't quite understand this.