I'm not so sure it would be a disaster (Societally, sure many farmers livelihoods would be disrupted...), would many food become unprofitably expensive or a rar

I'm not so sure it would be a disaster (Societally, sure many farmers livelihoods would be disrupted...), would many food become unprofitably expensive or a rare luxury, yes. Would many farms be immediately incentivized to move to more efficient irrigation or even more efficient crops, probably. Seems like we should subsidize farmers with grants for improved water use instead of just giving them cheap endless water.