When someone doesnt want to recognize something, they wont. No matter how much info you give them, they will simply flat out ignore it and tell you your crazy.
Thats just psyche 101, people see what they want to see.
Personally, I just find it hilarious that I PROVED it to him that this is happening now AS PER CAUCUS RULES, and now he's bitching about it as if it's some new revelation and calling it "hijacking."

BTW, best example of this happening is Missouri. Ron Paul finished dead last in that state with 5% of the vote when Santorum had his "hat trick." Of course, RP didn't campaign there and his supporters didn't go vote because they realized that it was a non-binding straw poll. When the REAL voting started in the caucuses, they smoked the whole thing. Of course, now the GOP is furiously mad that their golden boy, the far-left progressive Mitt Romney who doesn't have a plan to balance the budget, is opposed to a flat tax or even reduced taxes (after all, his tax plan is revenue neutral because it will allegedly replace various credits and deductions with lower rates), and has taken every side of every social issue from abortion to gay marriage, is getting his ass kicked by Ron Paul in these various caucuses. For example, check out this letter from the Establishment GOP to the grassroots:

Why is the Establishment GOP challenging the St. Charles Caucus delegation?
Because Ron Paul won it, fair and square. Right now, the Establishment GOP is working overtime to sink the campaign of the ONE and ONLY true conservative and constitutionalist who will stick to small-r republican principles, Ron Paul. But the Establishment is dead set on proceeding with the coronation of the Big Government RINO Mitt Romney.