Those places all fail in the diversity category and here is why... ( you ignorant schmuck )
All top members of CCP are Chinese... and minority representation is nil. All countries have different minority communities, and in America ours are mostly based on race, or gender, or sexuality. Chinese have very different cultures that are 'Chinese' but are not of the same cultural background. The Saudi princes are arab, but they do not represent all the different tribes in the area. They do not represent the different relevant division in worshiping practices that have split the Middle East in half for the last 400 years.
And people from Niger are called 'Nigerian' and they have a very diverse population based on ethnic origin. Just because they are African does not mean they have no diversity issues.
Japan, hard to immigrate there and gain citizenship -- diversity issues. Iceland - hard to immigrate there -- some small (very small) issues.
And we, Americans, do complain to those governments that they are not inclusive enough of their representative populations. Diversity means just that, if you are fair in practice then all people are represented. The balance does not have to be perfect, but if it is non-existent then this point to a problem structurally in that society. Diversity does not mean 'less white' it means inclusive and representative of the population.
50% of the US are women... however less than 10% of the US leadership is women. -- seems like an issue
48% of the US is considered non-white... however we don't see anything close across socio-economic levels -- this indicates a structural problem
Take Hawaii ...
first two senators - one asian american, one white seems a little strange as most of the population is ethnic Hawaiian,
but over time the majority Hawaiian population elects Hawaiian Senators -- a correction
now a Hawaiian Senator dies and the governor ( the previous white Senator ) replaces the senator with a white guy who has worked in government for years and is highly qualified ( actually mostly highly qualified and elected by the people into high office ) its a good appointment but - this will probably be corrected in the next election by the people.
Diverse does not mean less white... it means the structure allows all to participate equally. Bias is hard to recognize unless you start looking at numbers. An IT firm where no minorities have applied does not have a diversity issue for being all white... the area where it is located probably has a diversity issue and minorities don;t get the same opportunities.