I understand this sentiment, I really do.
But if you start to exclude people, you have to draw the line somewhere. Is this theotrtical guy willfully stupid, or mentally ill? Should both get treatment? Only the mentally ill guy? Neither?
I'm perfectly fine with my taxes going to improving everyone's lives, regardless of how much of a stubborn dumbass they are. It's too important to make sure that not a single 'deserving' person gets left out.