So I'm not sure the chinese are more evil than our occidental countries...
Moreover, it seems that chinese authorities force people to install their software on the phones. But, last time I checked, I was forced to accept the EULA on my phone as soon as I turned it on (Nokia One for the record). I'm sure that I'm just as "forced" to install Android on my phone as I'm forced to install the chinese software : basically I can refuse, but it means that I have to throw the phone away...
Obviously I make a kind of caricature here, but my point is : whatever the way it is installed, the software on your phone is controlled by a powerful entity, controlled maybe by a powerful government which has, like most of them, some blood on its hands. There's nothing wrong with that, that's history; but we don't need to look to far away to see problems with privacy...