It's in our DNA to want to be close and comfortable with our own tribe.
That is true of White, Black, Brown, Yellow, Protestant, Catholic, Hindu, Muslim, Chelsea fan, Spurs fan, Socialist, Comservative, Army versus Navy versus Air Force, Northerners versus Southerners, Rich versus Poor, and the list goes on and on and on.
And then along comes some politician with visions of social engineering, and we find inclusiveness and multiculturalism being stuffed down our throats, and it simply does not work.