You are the one that claimed China is growing when they have 33% lower birth rate than the US. So either you can say China is shrinking faster than the US or is growing slower than the US. I’ll let you decide. The “replacement” level is just a bogey anyway - US population has continued to grow even net of immigration.
China's population IS still growing albeit at a much slower pace. Even with no immigration.
From the BBC:
China census: Data shows slowest population growth in decades
China's population grew at its slowest pace in decades, to government data released on Tuesday.