Can you elaborate on the above statement? You seem to suggest that the main part of the above claim is right, even the word “stealing” is basicly correct, as it is only “a bit” strong.

As far as I understand, “stealing” means taking something from somebody else without the knowledge and usually against the wish of the other party. Can you explain why it is a secret to the local people that China is taking oil from Angola (without payment?)? If that is not a secret and you think it is against the wish of the people, I suggest you change your phrase from “stealing” to “robbing”, an experience that the people there perhaps are more used to in their memories from not long ago. “Stealing” is not “a bit strong”, it is incorrect full stop