....
You are wrong.
There is a spacecraft planned, its what goes on top of the
bfr "
Super Heavy"... Called "
Starship":

In this CGI picture the launch vehicle "
Super Heavy" is returning back to earth while the spacecraft "
Starship" goes to an earth orbit to refuel with a similar shaped (but fuel only) vessel; to then carry on with its mission carrying people and cargo.
Here is the official site of their plans:
https://www.spacex.com/marsAnd here are more details of the spacecraft:
http://spaceflight101.com/spx/its-spaceship/Some quick back-of-the-envelope calculations tell me this will burn up on re entry 100% reliably.