You are very right, there is nothing wrong with black at all! In fact your dogs are very beautiful, I love black animals, i have a black bunny! And Black labs are very pretty, I can understand why you were take it personal seeing as you have two black labs, but I guess the people taking them back preferred the yellow labs, although I still think that is no reason to take a dog back, it shouldn't really matter what color the dog is, specially after you have it home. You should love them for their personality You have gorgeous dogs, don't forget that.