We don't need to end the tax cuts for inome purposes, as Obama has said, we need to end them out of fairness. It simply isn't fair that one member of the non-ruling class should get to live at a higher standard than another member of the non-ruling class. All commoners should live at the same level, otherwise fairness cannot be achieved.
As Obama said, poor people are smart and work hard just like the rich claim to do. Thus, why should the poor be forced to live at a lower standard than the rich enjoy? Naturally, we cannot bring everyone up to the standards of the rich, so it only makes sense to bring everyone down to the level of the poor.