Option 1 is now on the table
https://www.washingtonpost.com/news/the-fix/wp/2016/06/27/so-you-want-to-secede-from-the-u-s-a-four-step-guide/
This is the route that those 2012 petitioners attempted. It asked the White House to "[p]eacefully grant the State of Texas [the right] to withdraw from the United States." To which the White House said, "haha no."
"Our founding fathers established the Constitution of the United States 'in order to form a more perfect union' through the hard and frustrating but necessary work of self-government," the administration's Jon Carson wrote in response to the petition. "They enshrined in that document the right to change our national government through the power of the ballot – a right that generations of Americans have fought to secure for all. But they did not provide a right to walk away from it."