You think the Chinese want some madman with a bunch of nukes and an unstable country on their border?
Uh, no.
Bilateral talks are a loser.
Then why do the CHinese send so much foreign aid to North Korea? The PRC has a long alliance with the DPRK, and they have been of no help in these failed six party talks.
How can you assert that bilateral talks are a loser when we have seen two years of six party talks fail?
The Chinese want a buffer state. If the US says disarm him or we do, and we do so by invading, the Chinese will cut Kim off. They are already upset that the US now has bases in the borderng -istans. If they thought they were about to lose N. Korea they would take action.