If they want to secede, let them. The next hurricane that destroys their shores, they'll come running back to the US for help anyway. Plus it'll save the US Govt on taxes. Example: For every $1 NJ gives the govt, they get $0.75 back. For Texas every $1 they give they gets $1.50. They'll miss that return.
Texas would probably exist as an impoverished and embargoed nation for a couple of months, then next thing you know the weaken ass and gun lax government would end up being overthrown by a highly armed and extremist insurgency made from hungry hillbillies that would usher in the oppressive and xenophobic reign they've always wanted, taliban style.
I agree with the concept but only Texans should be allowed to vote on the fate of Texas. Other states may want to secede as well. Self determination is one of the natural laws. To deny self determination is a violation of human rights. Make the election 1 year from now so next November. Account and adhere to the will of the people: Yes or No.
Given the option Texas would certainly elect to secede. On the other hand the "union" is gaining Peurto Rico. [link] Both liberals and conservatives should be happy with this outcome.