Right off the bat, I'd say you are totally wrong about this forum. I've been a member of a few forums and this one is by far the most responsible when it comes to helping people find dogs. There's no breeder hate, as long as a good breeder is able to be found. The answers you received were well on par and had you and your family been more willing to take them to heed, you may have had a different story.
I would say that rescue dogs are "riskier" than dogs that are bred by reputable breeders (individuals that invest significantly in their animals). They're not really any riskier than your run of the mill "hobby" breeder, because frankly many of the dogs in shelters CAME from those breeders.
Then you have to consider that 9/10 reputable breeders are going to vet you just as thoroughly as a rescue, so you'd really be in the same boat anyway.
I really don't have too much to contribute as I really don't think we'll ever see eye to eye. I do think some rescues can be over the top; however I don't have a problem with a rescue suggesting dogs that might be a better fit than the dog I'm interested in. If I don't agree, I can move on. But as the general public is rather uneducated about dogs, they don't have any real reason to believe that I know any better, and anyway, they know that particular dog more than I would as I wouldn't have had any experience with that dog. They're just trying to find good, forever homes - nothing at all wrong with that. There is too much unnecessary turnover when it comes to dogs.
I think your question is a little arbitrary because what is intrinsically motivating for me won't be intrinsically motivating to you. One of our family friends breeds chickens - bearded Brahmas in particular. They're a breed of his own created (well, the beard anyway) and he values his chickens very highly. I have several purchased from him and I have to agree: of all the chickens I've ever had these are some of the kindest, hardiest, best layers, etc. They're just awesome birds - even the roosters!
But, I don't breed or show chickens. It doesn't interest me, so even though I love my chickens dearly I guess I'm not intrinsically motivated to spend time with them in the same way I am with my dogs or even dogs in general. I am passionate about rescue dogs, more so since I brought home my own difficult, reactive rescue. He is a true example of the need for rescues to KNOW their dogs and to make good home matches. He is the kind of dog that would have ended up back in a pound had he not made it to our home - some of his issues I think you'd find too extreme. He's also a true example of the importance of responsible dog ownership and the need for GOOD breeders (he was from a hoarder/mill).
Anyway, hopefully that dog is able to find a decent home and you eventually find a dog that fits your requirements.