Try and prove me wrong on this...

[Mozart Link]

They wouldn't feel devastated because they would see you as an intelligent being. They would tell you if you want to be happy, then grow up and do something about it.

If my lack of ability to experience pleasure were permanent and there is no way I could do anything to make myself feel more pleasure in life, then they would feel devastated. Intelligence (thoughts and such) are nothing more than mere biological functions such as breathing, movement, etc. But pleasure is your emotional well-being here and is what makes your life worth living (as I argued in my opening post). So for them to feel happier knowing that I am reduced to nothing more than mere biological functions (which would, again, be intelligence and such with no pleasure) than if I were to be retarded and happy would make no sense.