I don't think the idea of a "colorblind meritocracy" is honestly a very good goal state.

Nations should be conscious and protective of their ethnicities. A 'national identity' can only extend the common tribe so much. Assimilation is rarer than we thought.

In many places, like Japan, the overlap between national identity and ethnicity is nearly 100%, and that's worth preserving.

In highly mixed countries, like America, it is better to develop a shared pride for the ethnicities of the country than pretend they don't exist.