—“How does one create a nation state and at the same time does not offend other ethnic minorities?”—
This is a fascinating question because it demonstrates a cultural difference between western and non-western cultures.
The founding principle of western civilization is that you have no ‘right’ to respect, or freedom from ‘offense’, whatsoever, because the evidentiary truth is more important to the people than your status or self image.
We see ‘offending’ as ‘teaching the ignorant’.
The purpose of a nation state is to prevent competition from obtaining political power.
Hence the success of monarchies, and constitutional monarchies, and chinese bureaucracies, over the more primitive peoples of the world.
Once deprived of ability to obtain power by political or religious means, a people has only commerce by which to obtain power, and commerce is meritocratic.