So Romney lost the "conservative" vote to Obama?
I think you better take a look at the votes. Obama won, NOT because Romney was "not a conservative", Obama won because there are NOW more STUPID people than rational people. A conservative is not going to win the "STUPID" vote.
They don't ~ there are many tens of millions of American Republicans and American Democrats who don't vote even though they can, but they don't do it as a regular practice. With a great deal of effort the parties can sometimes get them out to vote.
The way to win is to make sure the other party's backers don't feel like voting this time!
Also, there's a corollary ~ that it is remarkably stupid to discourage your own backers from voting!