You clearly are an anarchist. If you reject the very bones of our country, then the country is left with nothing in terms of structure and process. Nothing = anarchy.
And yes, I prefer what you mistakenly call "capitalist dictatorship" better than CCP authoritarianism, which is really just Xi being a brutal dictator.
Why do I feel that way? It's simple; in spite of the many flaws capitalism as an economic system has, when combined with the freedom guaranteed in our constitution, it makes for a country where more people have more opportunity to better their circumstance than any country in the world now, or any country that has ever existed.
The founding father's weren't idiots; quite the opposite. They knew they may not have come up with the best system. Hell, they knew it wasn't the best possible system, but just the best system going, AND it has built in mechanisms for improvement.
So yeah, I'll support a "300 year old piece of paper" over the CCP's brutal abuse of its own citizens, many of whom have zero chance of making their lives better.
And not to sound overly cliché, but there's nothing stopping you from going over there. What's stopping you? Unless you feel that you have a better life here than you would there. I think you know where I stand on that. Of course you have it better here. Caveat though, you have to want it and work for it. Is that a problem for you?