If it's any consolation, last time I was in China I saw a McDonalds and two KFC's in just our little town. Looks like your prediction of obseity and cardiovascular diseases is heading their way.
You right about over-population. Most the hardships I see in Africa could be solved with the widespread use of condoms and the shoot of the Catholic missionaries that keep telling people not to use them or they'll burn in hell. At least China tried to control the population. We were partners on a project with Government owned comapny and the workers told me that if they had more than 2 children then they would be fired from their jobs as punishment. I heard that from several sources so I assume it's true, however the Chineese are good at "shuffling" family members around so it looks like they only have two.