I'm starting to this was her father. Tina picked him even though her family disapproved. And even more telling, she chose another dark man after him. That isn't something she would have done if she were obsessed by color. And since Papa Knowles went away, so has much of the Creole talk
I do believe that if you did one of those genetic tests that Tina would have a huge percentage of European blood. But I think people thought that Blue would take after her mama's family because Daniel did. But everyone is forgetting that Daniel's father is half white.
I never really thought Miss Tina had colorism issues.