Warning: This is my opinion only. Unsupported by facts.

Most people in this country are irrational and not nearly as intelligent as they think they are (myself included). Rather than think it through, they make big decisions about candidates based on party affiliation or a single issue, such as those stated above. It's simply easier...and then they can go about the far more important business of deciding who should win "American Idol". Yes, that was sarcasm.

I do the same to a certain degree. I will never vote for a candidate who publicly proclaims their intention to overturn Roe v. Wade. I simply can't do it.