I'm not speaking only of your last few posts, I'm speaking of the entirety of your time here and elsewhere.
As to why the history of 20th century China, and specifically the war between the PRC and the ROC matters to "China today making fake products, producing non genuine goods and getting away with all sorts of copyright and intellectual property issues", it matters a great deal. It matters because the primary actor in Chinese IP theft is not a series of private companies or "shady individuals", as you intimate, but a codified branch of the Chinese military tasked by law with doing exactly this.
Likely, these companies spend more time on networking products, wind turbines, car parts, and other high profit industries than they do on headphone amps. Nevertheless, it is the source of the culture of theft that permeates the professional world in China. It's naive to think that their "shitty president" (I mean come on, you can't say they're not a democracy then call their leader a president...) is the root of this, as it predates Xi by generations. The root of it is in the root of the communist party, and specifically their plan to sustain themselves through sustained economic growth, which now requires outright theft to maintain. They don't exactly get away with it, but how is anyone to stop them? Again, they're not popularly elected, and they're not beholden to Chinese citizens in any meaningful way. As long as they can stave off revolution, they're in good shape.
So whether or not they are a democracy is terribly relevant, as it explains a great deal about the country and its internal governance. I don't expect people in general to take a great interest in Chinese politics, or to be accurate in how they speak about China, but you're contradicting people who know what they're talking about.