Nah, the politicians and the populace would gain nothing by seceding. The Republicans are trying to push extreme “state’s rights” on all fronts. The goal of this particular fiasco is likely to get a favorable outcome from SCOTUS and to prevent Texas from getting more blue/brown from immigrants’ children. The goal of extreme “state’s rights” is to ensure Republican control over the federal government (there are more red states than blue states, and if states have enough rights to do things like overriding election results, voter suppression, extreme gerrymandering, and other various ways of “rigging” elections, Republicans can ensure control over both state and federal government).