It's like trying to land a pencil on it's end.
Every law of physics is against this.
You just can't do it without a gantry of some sort to stop it toppling over, and when all that mass hits the deck it would have to be at 0 KPH.
Think off all the extra fuel they have to launch, adding to the dead weight, just so they can have propellant for a landing. The whole thing is just too volatile, and ready to go bang for almost any reason.
It'll never happen.
They should go back to rethinking how to 'fly' these things in and out of the earth's atmosphere.
[.... and any deceleration of space craft should be done outside of our atmosphere instead of relying on using friction on re-entry and just fly it in pretty well much like the Space Shuttle, but at drastically reduced re-entry speeds.]
