You forgot midgets and troglodytes...
"Segregation is the heart of racism."
Then kindly contact BET, the Congressional Black Caucus, and the thousands of "Black" Associations, Clubs, and entities to inform them of your profound understanding of "racially based" segregation.
So...WHOEVER does it is behaving in a racial way, imho. Of course, there must a going out of one's way to exclude based on race rather than just a family get-together for a backyard picnic.
If the family is all white and they get together with themselves, THAT is not segregation. That's congregation. If the church is all white simply through free choice and they get together with themselves, that is not segregation. That's congregation.
If the family (or church) has black members and the white members exclude them because of "unacceptance", then that is segregation, and in the long run it will injure some family/church member.
Fairly easy to see with families/churches.