I don't begrudge his desire for segregation. And I don't begrudge blacks' desire for it, either. It's hypocritical, however, to demand that whites abide by the universalist rule of human culture while demanding that ethnic identity be preserved among minority cultures.
That is the great double standard at work today. There are one set of universalist principles for whites and another set of particularist principles for everyone else.
The so-called 'white culture' IS the universal culture. It has the best many cultures had to offer: Greek, Judaic, Arab, Chinese, Japanese, Indian, Anglo-Saxon, French, German, Russian and whatever was worth taking from other minor ones. The fact that nothing or not enough of whatever some inferior cultures might have produced it usually because their contribution was just that - inferior.
The multicultural/diversity drive is that of forcing the civilized world to accept the products of inferior cultures as if they were as valuable as the those who found themselves a place within the 'universal' one. The only way 'barbarians' can participate is by first asimilating. There is also the option of them (the barbarians) trying to destroy that which is superior so that only the inferior products are left (see the Talibans bombarding the Buddha statues).