Yes, pollsters ask the wrong question. Mr. Undecided is clearly #1 by a big margin. Republicans are in a mode where they name the 2 or 3 whom they could never support and the 2 or 3 they want to drop out (often the same). Then they name the 2 or 3 they prefer...not the 1 that they prefer.
In my conversations, Carson and Rubio are always in the top 3. Rubio is rarely #1. But his tea party (taxed enough already) credentials are solid. The single issue Malthusians on immigration just don’t fly with a majority of Evangelicals, and Catholics, and Capitalists, and Corporatists all of whom are intrinsically anti-Malthusian. The Republican PTA moms are Malthusian but not on immigration. That leaves the single issue Malthusians isolated...and angry.
Sit and spin-treebob
You are already out of the closet as an advocate for illegal aliens and their employers.
The leading candidate is leading because the citizens have had enough of duplicitous politicians who care more about fraudulently documented foreignaers than the citizens.