I believe the object here is to not only get Texans thinking about secession, but people in those other states as well.
Why do you want Texas to secede? From what? Yah, we could be own own nation, but why? Just cuz we can? What good would it do? How would we let people in to the new nation? Do we force everyone to have passports to enter? Do you have any idea how our borders will have to be constructed and the walls that will have to go up between Texas and Oklahoma and Texas and Louisiana and Texas and New Mexico and Texas and Arkansas and Texas and Colorado? How are truckers going to like having to bypass Texas for whatever reason when they are trying to get from Florida to California?
Secession is a real sexy idea but it would never work.