Given how many of them receive absurdly subsidized water from the Bureau of Reclamation, I'm going to say no. Take Arizona, where the already subsidized (though not nearly as much as some BOR water projects) cost is ~$200 per Acre-foot from the Colorado River (via the Central Arizona Project) compared to the $2200 per Acre-foot price of Desalination water.
Farms in the Central Valley Project are paying < $20 per acre foot because the contracts were negotiated sixty years ago and not indexed to inflation.
Yeah and on top of that many of them had their loan interest federally subsidized to build out their private infrastructure. The original 160 acre limit per farm of the 1902 Reclamation Act at least made sense in this context. Despite that, many of the multi-millionaire farmers flaunt that rule entirely even with it being raised to 960 acres in 1982.