Carson can’t win but I’m not sure how much he’s skewing the results at this point. He’s a small percentage and he’s so mad at Cruz that I doubt there are many Carson supporters who would support Cruz. I think more of them would go to Trump. Not many would go to Rubio. I think in the end the percentages would be pretty much the same for the other candidates.
There’s no guarantee that Carson’s or Bush’s supporters would even show up to vote. They may be so disappointed their guy dropped out they might not vote in the primary at all.
I think Carson’s supporters are 100% for Carson, and no one else. Some might choose Kasich because he’s also refrained from loud arguments/name calling.
But it was Trump, when there was the introductory snafu at a recent debate, who stopped and talked w/Dr. Carson to help save face, instead of just passing him by as the others did. That one vignette showed a lot about the character of the various candidates.