What is one regret true son has about leaving his white family?

True Son's primary regret about leaving his white family is the loss of his former identity and the deep emotional ties he had with them. He struggles with the conflicting loyalties between his birth family and the Lenni Lenape tribe, feeling a sense of isolation and longing for the love and acceptance he experienced with his white family. This internal conflict highlights the pain of cultural displacement and the difficulty of reconciling two very different worlds.