Yeah, but it doesn't matter how many slaves or black characters are shown - or else something like Roots or The Color Purple would be the most racist film in history. It's how those that are shown are treated and presented.Really? Please, tell me. What scenes do we see nothing but as you put it "black slaves by the truckload"? The BOOK may have had many mentions of a lot of black slaves in it (I don't exactly remember, seeing as I read it about 5 or so years ago), but the movie steered clear of showing lots of slaves in one area. Aside from a small work scene in the beginning, the little girls fanning the napping women, and Big Sam and the others going to dig trenches (when all of Atlanta is running away), there were no other major slave scenes. And there were probably 4 or so major black characters (Mammy, Prissy, Big Sam, Pork).
Gone with the Wind may not have any major faults on first viewing and perhaps little may stand out as being "politically incorrect". It's main problem is, like Song of the South is supposed to, it concentrates on showing "happy" slaves. And as such, is criticised for painting an inaccurate picture of the period. In short, it concentrates on what could be seen as the positive aspect of slavery, rather than the harsh reality the vast majority of the slaves experienced. Therefore, while it may not be 100% inaccurate (I'd guess some such progressive households did exist), there is a valid argument it is distorting history.
Now, considering that this is the main complaint against Song of the South, and the characters in Song of the South aren't even slaves, it shows why Gone With the Wind could (and indeed should be) considered more "politically incorrect" than Song of the South.
And of course, Gone with the Wind is a hollywood epic, which people will assume presents a true representation of the period, while Song of the South is a children's film. Singling out Song of the South but not Gone with the Wind is, in my opinion, absolutely absurd.
As for a DVD release of Song of the South, I would expect it to be released internationally soon (say within the next year or two). Over in the UK the film regularly shows up on Network television - there's really no argument for Disney selling it to TV but not on DVD.
