Western Kansas seems to average in the upper teens to mid 20s of inches of rainfall per typical year (drier years do come as the article notes). If it could be husbanded well you'd think that would be sufficient rainfall to grow these crops.
That’s an average calendar year most likely. A corn crops roughly needs 20 inches of water to be viable. Corn is usually only grown in 1/3 of the year.
We just shouldn’t subsidize crops in this region. If people want to make a run at it, more power to them and it may work in some years. But no subsidy
To the downvoters: I just assume that a person who identifies enough with the high water use avocado to have it in their user name would have done some research into agricultural water use.