I agree pagwatch, with your bullies analogy. Of course we aim to sort out the bullies, rather than get rid of the bullied. But IMO it is inaccurate to make this comparison to the subject matter here. I am not questioning the attitude of society here, but the financial resources of our society to provide the kind of highly supported, rich life that an adult with a severe learning disability needs and deserves. The attitude of my family, our friends, most people we know, is absolutely to support people like my sister to have a fulfilling life. But, as Litchick suggests, no amount of education, dedication, campaigning, and pure hard work on carers' (including my parents) part can guarantee that this provision will be there. It costs a lot of money.
My sister's childhood was wonderful, and enriched all our lives. If I were expecting a baby with Down syndrome, and knew that a society was in place which would enable all this love and joy and positivity to flourish well into my child's adulthood, I wouldn't think twice about proceeding with the pregnancy. But the gritty reality is that such an adulthood is an expensive rarity, and this is going to factor in how parents feel about welcoming a child with Down syndrome into the world. We give birth to babies, and nurture our children, but they will be adults for most of their lives, and the realistically anticipated quality of that adult life needs to be considered, too.