I completely agree with you, yes. I have both the original and the revised versions of them and, comparing them, the revised versions, which are about 3/4 the length of the originals, have lost all their "atmosphere". I really don't understand why they couldn't have just removed the racist stuff and left the story alone. I can only guess that perhaps they thought that teenagers wanted shorter, "easier" books to read.
BTW, you can't insult Nancy by calling her a "redhead" - her hair, at least in the original books - was always "titian" (whatever "titian" might be
). I think she did become a redhead in the revised versions, though.