i) the US wants to forbid other countries to have a chance to win in pure capitalistic games. Thus, it will block strong investors from certain countries but let itself to invest in the same countries.
ii) the US (e.g., agencies and private firms) currently controls the entire world via political and electronic backdoors installed everywhere. So it sounds like a bad joke when people claim that China is inventing some surveillance mechanisms like if it is a new one.
I believe that we first hand observe how propaganda (here, against China) works. While China does some shitty things, the most precise short description I can come up with is that "the West" wants China to be its slave. I have no doubt this will happen to some extent in the same way it happened to Japan in the 80ies (no slavery, but drastic decay). In 2040 we will be told to hate India. In 2060 it will be replaced by some growing African country.