That is awful!! It would have took every last bit of strength for me not to say anything and I am still no sure I could have kept quiet. I really think they are jealous so they have to say something stupid to justify their jealousy. Luckily I have never gotten that type of response from anyone when I take out my babies. But I have heard people say that a dog was starved and that is why is was so small. I don't know why some people think that if your dog is really small you have to starve it to keep it that small or stunt its growth. I think jealousy got the best of them.
Oh and your babies are all so cute!!!!