If you focus on the term "bona fide", shouldn't the question be whether the relationship is substantively "bona fide"?  Seems like you could be completely estranged from your Mom and Dad, have no other relationship other than accident of birth, but be admitted based solely on birth parent identities.  Same with estrangement from brother or sister, yet the government would consider that bona fide, while a close, loving, meaningful relationship between a grandparent and grandchild would not.  I think SCOTUS was saying, "have a heart", and "the US SHALL have a heart" when it comes to relationships that can be determined to be bona fide.  Like they CAN be between fiancees, grandparents and grandchildren, and other family members, no matter how wide the gap in a relational line is.  If that's what Chin is trying to clarify, I think it's good.  When Trump excludes Filipinos (because there's ISIS in the philipines), and Koreans (cuz of Jong un), etc., it's gonna matter to people in Hawaii.