That is ridiculous. I hear people (usually White people) make these sorts of statements all the time. These are the same people who (i) almost never have Black friends, (ii) don't know any Black people, (iii) have never lived around Black people and (iv) only know Hispanics because they perform lawn services for them.

Fact of the matter is, without a conscientious effort to seek out relationships with people who are not like us, most people will simply retreat back to what is most comfortable to them, and that is generally those who look most like them. To pretend otherwise is not only naïve, but disingenuous.