Nothing to do with race. Japan is a western nation with high levels of education. Niger is... Not. One doesn't replace the other, no matter their races.
If you'd told me that you could replace Japanese people with the same number of say Thai people I would've made the same comment, and they're both "Asian". Nothing to do with race, just look at the country stats.
If you'd told me that you could replace Japanese people with the same number of say Thai people I would've made the same comment, and they're both "Asian". Nothing to do with race, just look at the country stats.