That's a fair question, and I'm happy to answer it. What I fear more than anything (political) is the death of the two party system. IMHO, it would be nothing but disaster.
I've seen multi-party systems, and they're always horrid. Italy comes readily to mind. Hell, Slick comes to mind. He was the product of a multi-party system. 43% of the vote is less than a majority, but when you have 3 candidates grabbing for votes, it's easy to wind up with a winner that more people voted against than voted for.
So, it's not that I don't respect your RIGHT to direct your vote as you see fit. It's that I absolutely fear the demise of the two party system. No good can come of it, no good at all.
I fully support the two-party system and prefer it continue. However, the system I truly fear is a one-party system, one that cripples the system of checks and balances. While you didn't address the second part of my post, I believe it hit on that issue. If the GOP offers up a candidate that looks more like Ted Kennedy than Ronald Reagan, is there really a two-party system? And what should I think of a candidate (R) who expects me to vote for him but really doesn't agree with much of what I think is important, or what is in the Republican platform? Should I believe they are going to fight for Republican causes, despite the record to the contrary? Or, should I think they will join with liberals the same way they have for a lifetime? I think you can guess my answer.
Under similar logic as you seem to suggest, we've created a monster in California (R) with our Governor. He has joined with democrats in multi-million acre land-grabs, big government programs, huge borrowing initiatives, and horrendous global warming legislation (to name a few). In each case, he was opposed by an almost unanimous minority of hte Republican legislature. He calls this "bipartisanship" or "post-partisanship" or governing from the "middle" as long as he, a Republican, agrees with the democrats. I fear this same phenomena at a national level.
The obvious solution I see is that all Republicans and Conservatives should be fighting like mad to make sure that Rudy does NOT get the nomination and working to support an alternative Republican candidate in the primaries. Instead, I see more posts like yours, trying to justify why Rudy should get people's support if he should somehow be able to win the nomination(R). People have spoken--they won't support him. Trying to bully them into it with "heaps of derision and abuse" shows Zero respect to that person and their right to act and vote on their principles. That's my two cents, anyway.