Two things will decide the future of Texas, controlling Texas education to teach Texas patriotism to Hispanics, and converting a sizable number of Hispanics to Protestant Christianity.
Texas is strong in both those areas in a way that California never was, since it never was fundamentally conservative, nor Evangelical.
Have you been to South and West Texas lately? It is like visiting Mexico.
The difference between Texas and California is simple. We will fight to keep what we have. The majority of Californians lost their fighting spirit long ago. Yes, I do see some danger on the horizon, but Texas will not go down without a fight and you can bet on that.