Doesn't matter. They need to get over it. No one cares if they are lifelong Republicans or Democrats--associating your life with partisan politics is just sad anyway. Every vote they don't cast for Ron Paul is a vote they're casting for Obama or Obama 2.0. Period. I personally don't give a damn about irrational egos or pride; I give a damn about not seeing the country I live in implode upon itself.
No shit. But we're talking about other people, not us. And understanding WHY some don't make the crossover DOES matter, because we need to make sure they do. Getting mad at them after the fact changes nothing. Convincing them before the deadline to register does.