Not quite. Nuclear for China is competing first with imported LNG and oil. And next with coal. The Chinese understand that you don't need baseload at 100%. They use renewables to provide most of the cheap electricity. And then build coal, nuclear and gas plants (in that order) as needed. There's also the curious phenomenon of building coal plants as seasonal reserve. It's why their actual coal power utilization rates are down. They aren't running all the time.
We need to worry about Chinese solar because:
1) Risk of it displacing global LNG demand (growth or absolute).
2) Their $/W advantage can be weaponized to win in manufacturing, AI, etc.