Just the opposite. Paying for the island is an admission that the island belongs to China. Accepting payment allows both parties to back away from conflict.
In any event it's much better than a war.
Nonsense. If I broke into your house, and took over your garage, would you pay me to leave?
Accepting payment allows both parties to back away from conflict.
Sure. It's like a wanted criminal turning himself in for the cash reward, when he knows he's facing life without parole in prison. Great plan.