Canada

I'm willing to consider that the number has grown recently, but it definitely wasn't anywhere near zero before. There are a lot of areas, often very conservative, that idolize the States.

For example, in the Bible Belt of Manitoba, I wouldn't be surprised if close to, if not a majority of residents would support this. There's a independent streak bordering on libertarian, and many are VERY socially conservative. I didn't spend all that much time there, but I heard multiple people say how they wish they didn't have to pay for other people's healthcare. They're so close to North Dakota, even doing cross boarder trade and many see the higher mean income (sum of all income divided by number of residents) in the US and ignore the lower median income (50th percentile of income).