So let me get me get this straight: we now have bought into the GOP establishment mindset that was must appeal "across the ideological spectrum" - you know, like McCain and Romney were going to do? Meanwhile, our savior is great because he hates the GOP estabs as much as we do?
Uh dude, logic and history are not on your side with that statement.
No.
Voters who do not strongly identify with the ideological spectrum will decide the next election, as they do all watershed elections. As they did 1980.
1976: Carter 40 million, Ford 39 million. 1980: Reagan 44 million, Carter 35 million.
Democrats (-5 million) Republicans (+5 million), in a year when Democrats dominated the legislatures, the state houses, and the House of Representatives.
The winner in 2016, if he is a Republican, will need 5-9 million Obama voters to win.
If your assumption that voter behavior is determined by the voter's position on the ideological spectrum, and that all voters wear that like a uniform, then there really is no point in having an election for President in 2016.
Appealing across the ideological spectrum as McCain and Romney did is a disaster, as you rightly point out - but that's because they were targeting the wrong Democrats, and using the wrong strategy to boot.
Ronald Reagan "reached across the ideological spectrum" very successfully, by targeting white working class Democrats, and he kicked ass.
Best regards.