China just drew four non-negotiable red lines during Sullivan's three-day visit.

The Taiwan question, democracy and human rights, China's political system, the right to development.

The Taiwan question is the primary red line. Sullivan says that the US should uphold its promise not to support "Taiwan independence".

Another red line is that the Chinese people's right to development must not be infringed upon.

The talk of "overcapacity" and the "small yard, high fence" strategy are just excuses to deny China's right to develop.