No - the GOP's general problem is that the ave. American is getting smarter.
When the GOP drops gay marriage, abortion, and possibly gun control from its platform, it might, *might* be competitive again.
That would not be a smart idea. Pro-life and Pro-gun people aren't disappearing anytime soon.
Pro-life and pro-gun rights voters are already safely in the GOP column. Downplaying social issues won't change that; only becoming more socially liberal will. Emphasizing economic issues, however, will keep them in our camp while making us more competitive with moderates again.