[mjevans]

A large number of fabs and other manufacturing facilities exist there.

Texas has had several power failure related disasters in recent years; which have cost many lives and much value, as well as caused shocks to the rest of the US.

Much of the rest of the US does not have those issues, or has them in only very small predictable circumstances, mostly caused E.G. by huge windstorms (trees), earthquakes, fires, other 'natural disasters'. Climate generally not regarded as a natural disaster since it's something that should theoretically be planned for. Even the windstorm example, for metro areas power should not go out. It's only poorly managed rural areas that tend to go off the grid.