Why global migration data should recognise subgroups like the Teochew

In countries like France and Norway, the government census strictly avoids asking about race and ethnicity. Governed by a desire for national unity, these states operate on a firm premise: categorising citizens by skin colour risks creating divisions and reinforcing prejudice.
Across the Atlantic and in the Commonwealth, you find a different philosophy. The United States, United Kingdom and Canada measure race and ethnicity. In these societies, data collection isn’t seen as a wedge to divide...