I blame Perry.
Look, I’m born & raised in TX and I can tell you that a majority of conservative Texans (most of Texans) believe the Union should be preserved because we have fought too long and hard for it. We would also advocate civil war before succession.
However, we also believe that if the Union can’t be salvaged or the civil war won (or rather nobody else in this country will stand with us and pursue or support either course of action) then we fully advocate succession. We believe we can close our southern border, defend TX, and allow the TX economy to prosper.
Basically, we want to save the ship, but if everyone else is too cowardly to help us or too intent on sinking the ship, then we have no intention of going down with the ship.