I am so sorry for your loss.
I am so sorry that you also had to endure the pain from others who were supposed to be there for you and your fur baby, because pets are family! That's so sad the way your dog passed away - very traumatic, actually! Animals have feelings, even though they don't express them like humans. Animals also go through pain, trauma, and tears when really hurt.
I read your last posts and felt deeply touched by what you wrote!
It reminds me of the time I wept when my turtle died. I had just purchased my turtle from the pet store a few days prior to my turtle's death. I spent a lot of money rushing my turtle to the after-hours Vet Clinic. I was only 16, I think. My poor turtle had a respiratory infection, and it was pronounced DOA. I was so sad. I didn't get to say good-bye. I was mad at the pet store for not having vets check their animals before they sold them. I spent all that money, but I didn't care because I just wanted to save that poor turtle. I didn't even come up with a name yet. Or I can't remember.
But to have a pet for many years hurts even more. I cannot imagine what you are going through.
(((safe hugs and thoughts)))
Adding on - it is NOT your fault at all! And it is very likely that the only thing the doctors could do would be to euthanize her, since the description of your dog sounds like it was some incurable disease. I wonder if it was a respiratory infection, parvo, or some other sort of disease that are common among dogs. It's sad to hear when dogs get ill like that.
I'm sure you gave your dog a really good life before your dog was ill. I'm sure your dog understood you and your heart well enough to know that you loved your dog, and that you just didn't want to see suffering.
I hope there is a form of reincarnation or the afterlife for pets - like a heaven or something for pets. I still feel sadness when it comes to the pets I've known - including my friends' pets, whom I've grown to love over the years. It was sad for my friends and myself when there was a fur baby loss.
Your grief is understandable.
I'm so sorry your family is being super insensitive and verbally harmful to you right now. You deserve validation, support, and comfort during this time.