Mars' ground will not burn you to death, but the occasional solar flare due to missing magetosphere might, or the cosmic radiation, or the toxic soil.

That hell happens to be rich with all sorts of industrially useful chemicals. Seems like a decent reason to me.

Seriously? That isn’t how orbit works at all. With that plan you just reentered the whole thing, broke it into a million pieces, and rained it across the surface in a triumphant meteor shower of flame. Voila, everyone’s dead. Unless you had a plan for managing the atmospheric friction from orbital velocity that I didn’t read.

In orbit things move sideways with respect to the surface. Fast. So the only way that works is if your “standard orbital space station” has enough propulsion to deorbit itself and hover in place — now that orbit is no longer cancelling gravity — until cubic kilometers of balloons that need to inflate (with what?) could hold it up. That amount of dV is barely theoretical at this point and would require several technological breakthroughs. You’re basically proposing deorbiting ISS without the atmospheric reentry and fiery death part, and given the similarities between our planets and their atmospheres it’s not a poor comparison.