I understand what you are saying about the yorkie being bred to where it is today, but "today" it is a recognized breed with standards that are met by quality reputable breeders. There are so many mixed dogs out there and just because they are wonderful, intelligent and beautiful does not mean that they should be bred, or that they will one day become a recognized breed.
I don't think that anyone is trying to offend you, but is trying to give you advice. And I do have to say some of what you are saying isn't making sense. Why do you want to go through all the expense of pre-breeding tests for dad and mom, all the vet expenses for mom while pregnant, and then all of the expense and possibly heartache of whelping just to give these babies away in the end???