>Then when people from the south start mass-migrating maybe things will change
It won't be people from the South, it'll be people from the Southwest and California mass-migrating after they run out of water.
>And why water intensive manufacturing is locating in places like Texas
Do you think Texas is all desert? Huge swaths of Texas the size of other states get over 50 inches of rain a year. Plentiful high flow rivers all around make it a perfect place for water intensive manufacturing.