If a majority of Republican voters want someone other than Rudy as the nominee, why hasn't that candidate caught fire yet?
And, oh, could you please tell me his name? Who do you think the majority will flock to like ants at a picnic?
For example, since Duncan Hunter is a class act, and a Republican through and through, should he lose the nomination, and Rudy wins it, he will throw his support behind Rudy. Ergo (which means "herefore", for the pedantically challenged), since those who lost the nomination will throw their support behind Rudy, he will indeed have a majority of delegates (because he won the nomination).
We have seen in past elections that Democrats tried to spin a loss as a win, but I haven't seen Repoublicans do so as yet, so my point still holds. Since we do elect folks democratically in our great country, that would mean that they are elected by a mojority of those who vote.
The "all or nothing" gang, who would be in the minority, may choose to bolt or not vote and that is their choice. However, since they would be the minority, THEY would be at fault should the party fracture.
Of course, those who do decide to hold out and not vote, or would vote for Fred Mertz of the Itchy Tochus Party would lose what little credibility they have, by allowing a Defeatocrat to take the WH, thereby placing the country in terrible jeopardy.
So, there you have it. Hope that you can follow along, Einstein.