I think you could be right. You could also be wrong. My biggest holding with a position in China is VXUS, with is 8.4% invested in China. I could afford to lose 8.4% of my net worth (although I certainly wouldn't enjoy it).
And 8.4% of one fraction of my invested net worth actually seems like a reasonably modest bet on the less likely but certainly not impossible scenario where Xi is replaced by a president more in line with Jiang Zemin, and China goes back to developing/opening/westernizing like they were in the 1990s and early 2000s.
China GDP per capita could potentially still grow another 4-6x (based on how it compares to the western world). And private companies, the ones VXUS owns stock in, have even more room to grow in a westernizing China since they are strikingly more efficient and productive than their state owned competitors.
I don't think China is on track to do any of that today. But in an unpredictable future I'd prefer not to wash my hands of the country when I'm not 100% sure they won't go back to that track during my adult life.