Yet California changed from moderately Republican to uber-Liberal with it’s demographic change. That’s essentially the same shift distant-wise on the political spectrum of Texas going from Conservative to moderately Democrat. That will happen as Texas’ white population continues to decline.
Texas has almost double the percentage of blacks, and a 45% white population compared to California's 40%.
What brought down California was the growth in Catholic voters, that could happen to Texas as well.
2004 was a year of pro-life issues being on the ballot in California, but as you can see, it still didn't help.