" As Bangladeshi human rights lawyer Zia Haider Rahman has written, “Anyone who has worked in the field of international development, as I have, will tell you that nation-building in states that are ethnically homogenous, all other things being equal, is an easier task than nation-building where there is diversity.”
According to one model of conflict, sectarian violence occurs most easily when one ethnic group is large enough to impose cultural norms in public areas but not large enough to make sure everyone abides by them. Researchers at Brandeis University concluded that when groups are separated in clearly demarcated territories there is little violence because no group tries to force its rules on another.
Milica Zarkovic Bookman, who is an expert on ethnic struggle, especially in the Balkans, underlines the significance of race: 'Assimilation takes place in the spheres of religion and language most easily and is most successful among people who are culturally similar to the dominant group. When race is the distinguishing feature, assimilation efforts become irrelevant. "

― Jared Taylor , White Identity: Racial Consciousness in the 21st Century