I'm not convinced the data center numbers, especially water, are meaningful compared to absurdly wasteful agriculture like the corn for ethanol mentioned here, almonds in California, and cattle.
Let alone the likes of Nestlé's water stealing and golf courses in hot, dry climates.
Happy to be proven wrong by someone who has the numbers. For now like what this comment section is about with "the space needed for solar is nothing compared to what we're already doing", it seems like the water needed for data centers is nothing compared to how much we're already throwing away.