The Texas Republic of this story wouldnt be looking to conquer California to reunify the country, but defend themselves and prevent LA, SanFran, Chicago, New York, etc. from imposing on them.
***And how are things with that ongoing invasion from Mexico City?
And possibly bringing the parasite populations in Austin, Houston and DFW to heel.
***There’s millions of parasites currently invading your state from the south. In many ways they are already imposing their will on Texas. Texas would do no better in a hypothetical civil war based upon the ‘real’ war currently ongoing. Arizona would beat you.
As a Missourian, I cannot really speak for Texas, but so long as it is a part of the USA the immigrant invasion from Mexico is really the responsibility of federal government. As Az has found, there isn’t much a state government can do but make noise on the issue,