What is the purpose of having them in school?
I would assume it was for them to learn. Helen Keller was deaf and blind, and graduated from Radcliffe. You don’t know anything about these kids, except some yearbook blurb, and you’re writing them off.
It’s a disgusting attitude.
Even mentally retarded children can still learn. The upper limit of their abilities may be much lower, but their parents also pay taxes and these kids have the right to an education just like the other kids.
Proper education can prepare many of these kids to live a fairly independent life, which will be a blessing to them, expecially in their older adult years when their parents aren’t around to take care of them any more...