Simply they either need to relocated to somewhere else or slowly die while dragging the rest of community with them.
When they have indicated that a more modest increase in max. block size (such as the 8MB that Gavin has stated he would accept) would be acceptable then why do you keep trying to turn this "storm in a teacup" into some sort of Others vs. China battle?
If China ends up abandoning Bitcoin then I really don't see how that would be any sort of victory for Bitcoin at all.
China is not the only country in the world with bandwidth issues so I guess next you want to get rid of any developing countries as well and after a while pretty much Bitcoin will just be USA coin. To that I say - no thanks.