If the Republicans want a future, they have to actually offer something DIFFERENT from the Democrats. They fail to do this, year after year.
The Dems recommend a budget with a trillion dollar deficit, and the brave Repubs say they'll be bold budget cutters, and shrink the deficit to 999 billion. Then, if they ever get any actual power, they go ahead and make the deficit even bigger.
The ONLY real alternative to the Dems is the libertarian approach. Instead of locking out Ron Paul and his following, the Republicans need to listen and adopt his policy recommendations. If they do that, they have a chance. If they don't, they'll be the minority party again for the next fifty years.