The appeal of living on a new planet would be to shape a future devoid of the current flaws in society. That said, my concern is that the ability to start again would lead to new mistakes being made. The most obvious example of that in recent history would be the US, which was founded partly to escape the religious persecution many were facing in Europe - unfortunately the US has ended up with more religious problems than most. It's the same with guns, which were designed to protect liberty but now threaten lives - it's one of the reasons the US murder rate is 4-7x higher than western-European countries like Austria, Belgium, France, Germany, Italy, Norway and the UK.
Without a strong culture and vision you risk any newly colonised planet becoming much worse than Earth.
We have religious problems here in the US? Last I checked freedom of religion was still in place around here...or did you mean something else entirely that I don't know about?
Guns though, yes. Though technically if you go by the "Right to bear arms" line exactly, it doesn't actually have to mean guns. Just knives, or a weapon to defend yourself and property like you know, a giant machete or something I still say the invention of gun powder and guns themselves are the worst thing Humanity has ever thought up. Hey I know, let's make this little thing here that shoots this even littler thing here at other people you don't like or don't even know and hey it kills them instantly! Smart thinking.
As for the poll, yes I'd leave this dump of a planet without question. It's going downhill fast on this little blue ball sadly. I don't know what's going to happen to our society in say, 10 years let alone 100 years from now. But I do know the way we are currently going around the world, there won't be much left by the time the 22nd century comes around probably. Which is pretty sad. However, the new planet (if it is a similar copy to Earth) must have take out food. Specifically a good chinese place and a good italian place. Also, a good movie theater and access to the universal net™