HA! We got ourselves a liberal here. The world is revolting against your slave morality ideals. The authoritarian left and the authoritarian right are rising - neither of which are ideologies that affirm the rights of all American citizens.
>Is it possible that the lack of evidence says more about the value of those claims?
It's possible but not likely. I don't think the pencil necks would give anyone a lot of money to study the outcomes of the profoundly retarded. And cost-benefit will not be resolved in their favor unless we say that it's worth a sizable amount of money for parents to play dress up with their retard babies. It's funny to see a retard dressed like an elf, but it's not funny when I think about the resources we've wasted on that mouth breather.