A:I hope, you're aware, any African English teacher, who's land-based working in China is illegal worker by the current Chinese Labour law, i.e. work without Working and Residence permit, with exception of English teachers from S. Africa (see my link above!). This doesn't have anything to do with the racism!It's a simply put 'The-Law-of-the-Land!', which applies the same to the whitiest Dutch, Swedes ... or 'Vladimir-Vladimiro-witch-Putins', i.e. Ruskis ... 

Once, Chinese .gov will have a check-up on foreign workers in China (... and that happened every 2-years or so ...), African ETs will all get short (a week, the longest!) Exit-China requirement, i.e. you can enter China with Tourist, L-visa, but you aren't entitled to work and receive payment for that.Same applies to foreigners in China with student, X-visa. 

Good luck, but 'Exit-China requirement!' is not a pleasant experience ... P.S.Your listed 'values' do not apply to illegal workers in China, i.e. 'Stop with sugar coating BS, please!' -- icnif77