You're framing this as a question of "should we give these peasants free water, OR just let them starve?" That's not what's being debated, and is disingenuous at best.
Did I get it wrong?
Correct. It is a large subsidy to the peasants.
> Instead, we should let the market decide, ie, let industry buy the water and leave the peasants without it.
Yes, but with the money, which as earlier discussed is worth several times more than its value in subsistence agriculture. The person you were originally replying to was complaining that a 90% discount on the sale of water was essentially an extremely inefficient cash subsidy; the obvious solution is replacing it with an efficient cash subsidy. That's hardly humane.
> What will the peasants do then? Why, they are free to move to the cities and become industry workers
If that was a practical solution at the required scale, they'd have already done it. Hence why a subsidy is needed.
> Did I get it wrong?
It does look that way, yes.
The water shortage will not take hundreds of millions of farmers to equalize. Price rises by 0.01 cents per gallon and many farmers will will become more water efficient while selling freed up water on the open market. This, assuming some water vs trade off, would also raise food prices giving more money to farmers who do nothing differently.
The poor and everyone else would get higher food prices, but access to more reliable sources of water.
I think its perfectly reasonable to value a scare resource at a market rate. If the rate is too high to be tolerable then the government has an incentive to invest in water infrastructure. And people have an incentive to move where resources are under less strain.
Or we could just rape the environment for short term gain. It seems to be everyone's solution on every side.
Keyword: rate monitoring, not rate limiting
China might not be there yet, but thankfully, they're already got rid of the central planning.
And now the market is saturated with cheap, industrially farmed food, making his output worthless. It's hugely oversupplied with obsolete farmers. Yes, the market will even things out eventually - but that can have a steep, painful human cost.