I'll just chime in on the issue with this...
I have always maintained that it is just as constitutional to protest any war as to fight in it; the same goes for protesting any other action of our government. Freedom works both ways. If people feel that they would be more at home in Canada, Germany, France, Zimbabwe, Iraq, or anywhere else, by all means, they should pursue their happiness.
People move out of the US everyday, people also move back everyday, there is nothing noble, special or cowardly about it, they are merely exercising their freedoms. The only difference between those and the people who are moving out of protest, is the press has overblown your gesture. Enjoy your 15 minutes of fame, for there won't be very many 15s when either the press or the people who stayed in the US care about why you left.
Also a final note... When you get to where you're going, remember that your new neighbors care even less about why you moved there than we care why you left. If all you are going to do is bore them with tales of how much it sucks in America, I'm sure you will fail to find happiness there just as you failed to find it here. If your happiness is so dependent on whose butt fills the big chair in the oval office, my bet is, it won't matter where you are, you won't be as happy as you thought you ought to be.
Good luck and Good Life!