I can imagine a lot of libertarians going this way. It’s pretty close to my reasoning.
One reason I speculate that this is what I “think is going on here” among libertarians is that until fairly recently this is exactly what I was thinking, even until relatively recently, and I was genuinely on the fence between McCain and Barr (acknowledging that Barr is both a bit of a nut and has some statist tendencies himself). But one reason why I linked Pete duPont’s sobering WSJ column the other day is that I have slowly come to the conclusion that as bad as McCain is, Obama really is much, much worse than I realized for a long time. Maybe I’m just slower at this than others, but it really took a long for it to sink in to me exactly how far left Obama really is. On every single issue that I am aware of, he seems to be at the far left end of the Democratic Party spectrum. I mean really out there.