Lots of people leave California because they get tired of the cost of living, the low standard of living, the traffic, and lately the failing progressive politics. I'm one of them.
https://www.businessinsider.com/the-top-10-states-people-are-moving-out-of-us-2019-5
Between CA, NY, and IL that's about 450,000 people moving to other states. I can understand the NY and IL outflows too. I'm afraid you folks in Texas could find yourselves in a situation like Oregon, where the big population centers lean left from the new-comers, while the less populated areas stay more to the right. Oregon is a mess for that reason.