As an autistic person who works with autistic youth, I have to say, I agree with you. I don't think people, including the above couple, understand what autism can be. It's a spectrum, it can be a wide variety of things, and I don't think the Stauffers were aware of the autism when the adopted. When children are sent to a different family, it's not because the parent's don't want them, it's usually a court order that determines if the household is fit for that child. If Huxley had special needs, and the Stauffers aren't capable of meeting them, he may have been moved to a family that does have the skills to support him. Rehoming is done for the benefit of the child, not the parents.
Yes, in cases like mine, autism is a problem that needs accommodation. I've seen cases of autism for example as follow:
One very bright child who was very dialed due to his autism, and violently attacked his family to the point where he strangled his mother and she has to be hospitalized. His family was still very supportive, and had to get help in the home to keep them safe.
I've seen kids who need 18 hour care, in-home to help them stay safe and get therapy they needed.
I personally, don't blame this mother. I've seen many wonderful children, who had needs their parent's were not prepared for, and needs I wouldn't be prepared for without the team I had at the time.
The people here committing on how terrible these people are, probably have never had any experience with a kid with needs as Huxley. We all love to Mom-shame here, but I don't think anyone passing judgement knows what it's like to care for a kid that disabled. Rehoming is for the interest of the child, not the family. Huxley was most likely removed for his own good, and the family knew they were in over the heads because they couldn't give him the care he is entitled to.