1. Hedonism is "fairly correct". In a well-fed and low-violence society, the pleasure/pain axis explains >40% of what every human cares about, especially chronic pleasure/pain.
- 1a. Both the US and China are low-violence and well-fed.
2. Obesity is responsible for a high amount of pain. Furthermore, there are few things in society that don't kill you which are worse that obesity.
- 2a. People don't die that much in societies like China.
3. Modern entertainment is a good painkiller. However, obese people that consume it still experience great amounts of pain throughout the day. Entertainment that distracts people from fixing the chronic pain they feel is a negative to society.
With these assumptions, the US doesn't look like a significantly better place than China. In theory, the freedom enabled by the US allows people to do well on the pain/pleasure axis. In practice, the US enables companies to do things that lead people into greater chronic pain.
Note that I think that Taiwan could be a significantly better place than China by this logic.