Aveline
Yes but what could that lead to? What would/could they actually do that we should be afraid of?
Unfortunately, lots of countries have poor human rights policies
Many African countries have large reserves of key industrial minerals, Uranium, Lithium etc etc. Given that many of these rareearths are just that - rare -. I fChina has control of their production and sale, she has a whip hand over other manufacturing countries, including the US.
Similarly, if China has built lots of railways, power stations water systems etc using their technology. If a country tries to break free of them and use other suppliers, they will just find that they can no longer get hold of spare parts that all the electronic communication systems will stop working etc etc.
When the Chinese build key communications and power plants, they do not train up local people to manage and run them. All the management of construction and installation is Chinese. This keeps them in the country and able to influence governments, not to mention the inevitable espionage.