 Moreover, Herder has compelling reasons for this insistence on respecting national groupings: (1) The deep diversity of values between nations entails that homogenization is only a fantasy: non-existent hitherto and impracticable for the future. (2) Such diversity also entails that, to the extent that it is practicable, it cannot occur voluntarily but only through external coercion. (3) In practice, attempts to achieve it, for example, by European colonialism, are moreover coercive from, and subserve, ulterior motives of domination and exploitation. (4) Furthermore, real national variety is positively valuable, both as affording individuals a vital sense of local belonging and in itself.