How the fuck you can live on Mars?

Terraforming requires trillions.
Order of construction is economically risky and bets on each step supporting the next:
0.Any unsupported atmosphere will be gone real fast with solar wind. No Atmosphere = cosmic radiation.

1.Magnetic field:
Magnetic field will require some titanic megastructure set in the center of the planet or some sort of surface grid.

2.Atmosphere construction:
Well where you get that much air?

3.Water cycle, bootstrapping ecosystems:
Transporting water is not an option, its real heavy.
Ecosystems are easily to ruin, but hard to create.

4.Large-scale local industry
Risky investment that requires next step.

5.Human settlement
Who wants to live in a desert? It will require quite alot of earth-level ecology to be acceptable to most humans. No one wants to live in a desert or industrial theme park.

How the fuck can you live in the uncharted land of America?

Developing colonies requires millions.
Order of construction is risky and bets on each step supporting the next.
0. Any unsupported land will be gone real fast without homeland. No England = no support.

1. Getting there
will require some gigantic megaboat crossing in the center of the sea or some sort of surface raft.

2. Town construction:
Well where you get that much wood?

3. Supply cycle, bootstrapping towns:
Transporting food and supplies from England is not an option, its real heavy.
Colonies are easily to ruin, but hard to create.

4. Large-scale local industry
Risky investment that requires next step.

5. Human settlement
Who wants to live in a land of savages? It will require quite alot of England-level ecology to be acceptable to most British. No one wants to live in a teepee or Indian theme park.

Free Market solutions don't require terraforming
1.Private Air/Water Firms
2.Private Dome Cities. Btw Earth will need them too if the global warming spikes.
3.Private industry.

The elemental composition of Mars is different from Earth′s in several significant ways. First, Martian meteorite analysis suggests that the planet's mantle is about twice as rich in iron as the Earth's mantle.[15][16] Second, its core is richer in sulphur.[17] Third, the Martian mantle is richer in potassium and phosphorus than Earth's and fourth, the Martian crust contains a higher percentage of volatile elements such as sulphur and chlorine than the Earth's crust does. Many of these conclusions are supported by in situ analyses of rocks and soils on the Martian surface.[18]

Mars has no tectonic activity, therefore anything underground will survive indefinitely. Caves, tunnels, etc
https://en.wikipedia.org/wiki/Tectonics_of_Mars