The biggest question I have to which there probably has no answer is this:
Were Shultz and crew ever going to leave the plantation alive even if he shook Candies hand? I figured Candie had a hidden gun like we knew Shultz had but I wasn't and still am not sure how that event would have transpired. Probably the same regardless.
Then I have the same compliant as everyone else about how Django was treated once captured at the end of the third act. My gut is telling me he would have never made it out from underneath that book shelf and his wife would be trash regardless.
I did enjoy the movie and I didn't see any implied racism in it, perhaps the only 'bad' thing is that we can laugh at what the KKK really was....but that scene was funny.