Lifelong Texan here. I believe Tesla already moved engineering to Austin and then back to California. Texas has problems and politics I personally find atrocious, but there are some advantages too. Building homes is doable here (often done by crews of questionable immigration status; for sure Spanish is the primary language used) to the point that prices in Austin have actually seen declines recently.
And ERCOT seems to be doing ok these days - they keep quiet about it for political reasons I'm sure, but Texas has tons of renewables and is using batteries now to level supply out as needed. And the plans are to keep adding renewables and batteries.