The CSA (Chinese Space Agency) is running a fake space program.
The programme is not fake, Tom. There are some nutters on the web trying to convince people that debris=bubbles, but no one from any reputable media source or scientific agency believes it to be fake. In fact, Shenzhou VII was tracked by NASA through out the entire mission because it came uncomfortably close to the ISS.
But this is all irrelevant, because even if the video (or the entire programme) was faked, that doesn't prove anything beyond china having a fake space programme. China would have many motives to fake a spacewalk, none of which require the earth to be flat.
Furthermore, this whole argument is painting you in a corner, because the "evidence" for it being fake (such as the apparent lack of atmosphere around earth) comes from comparing the Shenzhou footage to images taken from Atlantis and the ISS.
So really, in this case, it doesn't help you - someone has to have a real space programme for either side of this argument to work.