Fixed it for you, and no, I'm not being a smart alec. I'd be pretty shocked if six years ago, this wasn't the exact same attitude amongst "liberal" America. But moreover, like I said, it's been going down this path for years.
And as for armed rebellions/revolutions since the 1900s, how about
The Colorado Rebellion, 1914
The G
reen Corn Rebellion, 1917
The Battle of Blair Mountain, 1921
The Weather Underground, 1969-75ish
The Soldier's Revolt, 1971 (Vietnam, but was American troops)
Then, you have things like
this article discussion secession, in August of 2007. I point to the article because it shows a wide variety of discussions during Bush's last years in office.
Here's one from Clinton's first four years. This one is an Arizona Bill introduced to Congress to secede from the US, with a majority of other states, and start over.
Heck,
Socorro NM attempted to secede in the middle of the 20th century.
Just do a search for message board and "armed rebellion." You'll find all types of discussions happening. So, the real issue, is that there wasn't a poll done, and probably, IMO, with the intent of reanimating the gun control argument. (We gotta get guns out of these freaks' hands).