It never got a home video release in North America. Mayber there was backlash about the 1986 theatrical release and they shelved it at that point. I think there was a VHS of the animated sequences, but not the live action sequences. I’ve never seen it, that’s just what I remember reading. It was released in Europe though, so it’s not impossible to see it.

Anyone who had it in the 1980s would have had to have a VCR that played PAL tapes, or a bootleg made from a PAL tape.

Song of the South is just a big deal because it’s Disney. If you want an example of a racist kids movie that’s always been easy to see: https://www.amazon.com/s?k=the+littlest+rebel+shirley+temple+dvd&i=movies-tv&crid=3OO41J3O1B9OR&sprefix=the+littlest+rebe%2Cmovies-tv%2C291&ref=nb_sb_ss_fb_1_17
I saw that on either AMC or TNT when I was a kid, and I’ve seen it mentioned on TV advertisements for “The Shirley Temple collection” on either VHS or early DVD, I don’t remember. I doubt Song of the South is more offensive.

The North American releases of Fantasia have always been missing this:?feature=shared

I would usually abhor sanitizing old movies, but I can sympathize with that one. I think it’s a movie that kids should see, and I can recognize why they’re better off without that sequence. I’d have it included as a special feature on my proposed Criterion blu ray.