Inexplicable? Nope, perfectly explicable. The relentless propaganda from the MSM has had some effect: it has convinced people who believe in decency and common sense that they had better keep their mouths shut or somebody will call them a bigoted homophobe. So they keep their mouths shut, but they still vote for what they believe in.
You got it right on the money.
You got that right. People who are against homosexual marriage may not want to say that to a poll taker face-to-face or on the phone. But in the privacy of the voting booth, they will express that opinion.
The same concept happened when former Ku Klux Klan leader David Duke won a seat in the Louisiana Legislature. He was behind in the polls, but won a solid victory on Election Day. I dislike Duke and the Klan; my only point is to show that polling doesn't always capture people's real opinions. People were reluctant to tell pollsters that they like David Duke due to his Klan background.
Not many wanted to admit voting for an ex-Klansman.