Well, I don’t know. In terms of total food nutrient value, TX might be closer to CA than you think.
However, fruit, grain, and vegetable production in TX could be MUCH higher: Divert Midwest flood waters to giant reservoirs in TX for irrigation. Certain climate sensitive food plants might not grow well in even an irrigated TX, but otherwise, it would work just fine, and solve flooding problems, too. Granted, it’d be one heck of a pipeline project, but TX has the energy to power the pumps, and the space for the reservoirs.
If you could divert flood waters from the Midwest why
send it to Texas? Do you know it takes more than water?
What about climate and proper soil?