Why would you want to split? Texas is awesome. :)
A Texas Confederacy of five States could keep the Democrats from running roughshod over the rest of the country — by taking away the Democrat supermajority.
Which of five possible Texas states would be Democrat controlled?
West Texas? North Texas? East Texas? South Texas? Central Texas?
Or secede as five nation-states within the Texas Confederacy and get five votes in the United Nations, or fifty votes with fifty nation-states with half million populations like Bahrain or Luxembourg.