No amount of engineering, terraforming, or any other science fiction magic will ever make any other body within human reach survivable for long
Space is far more hostile than any planet, and we can manage to survive up there for quite a long time.
Terraforming is not "magic", and small scale examples of humans changing conditions where they live abound.
Even the most hostile environments on earth usually have at least SOME oxygen, water, soil, air pressure
The moon even has most of those.
Mars has all of them.
no colony out there could survive for long without constant support from earth.
They will not if you never try.
We are stuck here. There is no escape.
You might be, but all the trapping being done is by your own mind, not any kind of scientific basis.