Uncle Remus befriends and amuses one boy with his storytelling, and you extrapolate that his "main goal in life is taking care of white people's children"? You're looking for and finding subtext that isn't there and never was.To say that depicting a black man in the Civil War era or Reconstruction era whose main goal in life is taking care of white people's children is not an expression of an certain ideal of race relations as framed by white racism, is to reveal one's self as supremely ignorant of the ways white supremacy manifests itself as an ideology. Song of the South is a racist film.
IIRC, the head crow, the one who does most of the talking, was voiced by a white actor. The other crow voices were performed by members of a black gospel choir.They're certainly in the tradition of minstrel show stereotypes, but I'm not that offended by them. In the very least, they're not voiced by white guys.