That is a trivial observation. A nation of such size can hardly be a hive mind with totally homogeneous politics.
Yet China is 3 times as big and you are quite comfortable treating it this way
Yeah. And? So?
When the part of the country that was less unique took power, they immediately did what everyone else that was not unique did and became unwelcoming of foreigners.
I guess to you other countries that the US is becoming more like would also not be of a hive mind by having people that are welcoming of foreigners. Where's your hive mind comment about that part of the original comment?
You’re right best reserve such observations for small nations like China