Yohane Banda said if he had known Madonna had plans to divorce Ritchie, he never would have agreed to let the celebrity couple adopt his 3-year-old son, David, The Sunday Times of London reported.
The 33-year-old peasant farmer called on the two celebrities to resolve their marital problems and not force his child to be raised by a single mother.
"When a mother and father divorce, or the mother or father marries another person, I know that it becomes very difficult for the children to adjust," the Malawian native said.
Banda also accused Madonna of reneging on a promise to allow him to remain in contact with his son after his adoption.
"I am completely ignorant about what is going on. I don't even have photos to show off my son," he told The Times.