Don't lose heart? Too late. We have attained critical mass where the number of people voting for politicians who promise them "free stuff" outweighs the producers. Barring God's intervention, America is doomed to experience a Greece like national crisis (or worse) sooner or later. When will this occur? Hard to say.
Look, we have already gone over the fiscal cliff. And there is no sheer drop on the other side and a sudden splat as the ground interupts our terminal velocity. Rather, we are on a steep slope down which we are sliding to an inexorable demise.