Kilgore was just a weak campaigner and debater. I don't think it's that complicated.
The fact Bolling and McDonnell won-- the latter without an NRA endorsement-- makes it clear Kilgore wasn't rejected for being a Republican. He was rejected for being Jerry Kilgore.
Frankly, he was notably weaker than Earley-- though Kaine is likewise weaker than Warner.
Internal GOP conflict in VA probably hurt Kilgore, but was not at all a deciding factor.
McDonnel didn't exactly get a mandate. Bolling didn't exactly landslide.
True, which is why I used the term "won," i.e. a reference to the victor in the race, which for Lt Gov was Bolling, and for AG was McDonnell.
Secondary statewide races often follow the Governor's race; Kaine won because of Warner. In this case, voters clearly separated Kilgore from Bolling/McDonnell, even though the latter two are arguably more conservative.
Look at Virginia Beach, for instance. Kaine won it outright, a surprising feat, but Bolling and McDonnell won easily.
Like I said, the data seems fairly clear to me. I'm not sure WHY someone would vote for Bolling and McDonnell and Kaine, but they did, and in large numbers.