Governments are a reflection of the people. They're not some nebulous, abstract entity; they're literally made and run by people of each country. They're chosen–or in some cases imposed–to represent the people to the world. Even in dictatorships, it is the people that choose for governments to remain in power. When that stops being the case, governments are overthrown, and a new set of people take power.
The people of China choose to allow CCP to run their country. If they were so different ideologically the CCP would no longer exist. Countries with orders of magnitude less people struggle to remain united. The fact 1.4 billion people can be represented by the same political party speaks to the strong ideological ties that are shared by most Chinese people. I would argue that those ideologies were implanted by decades of brainwashing and totalitarianism, but how it was achieved doesn't change that fact.
So, yes, your experience and likely many others' is with good people. Countries are not exclusively bad or good. We can recognize those good traits that China has as a nation.
But it would be wrong to also not criticize the bad aspects, and sweep them under the rug as the CCP constantly tries to do. The rampant economic and moral corruption, overfishing of world's waters and general disregard for animal life and nature, disregard for human life, widespread racism and xenophobia, isolationism, etc.
These are not only governmental issues, but part of the modern Chinese culture that taints whatever good aspects we can celebrate.
Undoubtedly comparisons to the US will be made, but at least we can criticize bad US aspects (both government and cultural) openly, without random US citizens coming up with defensive arguments. The US government will persecute whistleblowers for airing its dirty laundry, but we've known that for decades.
I fear a world where the dominant superpower has such a culture and is closed to criticism—not only because of its oppressive government, but because of its people.