If they go on record officially declaring that we don't have the "Right to keep and bear arms", we won't have to wait decades to see the repurcussions.
Furthermore, there is no guarantee that Bush is going to put a Scalia or Thomas on the court. With the exception of Reagan, Republicans have put more statists than constructionists on the court.
In another two generations, there may be nobody left who remembers freedom.
The Soviet Union also had a lovely constitution, but everybody understood that if you actually tried to apply it you would go to the Gulag.