>If my tap water is brown as a result of a DC, I may not agree with your positives. If my neighborhood is humming all night because of a DC

Those things are both a result of a failure of government, not the existence of data centres. If there are externalised costs the company wants to put on people then your government should extract them from the company as a condition of permission.

Data centres are factories that turn electricity into heat and money. They're basically the nicest factories possible. There is no fundamental reason they need to harm people, any issues data centres cause should be easy to address as a fraction of the already massive sums involved.

So if I build a heavily protested foundry that spews carcinogenic lead smoke into a residential neighborhood, it’s not my fault and the operation of my foundry is unimpeachable. It’s the government’s fault for not stopping me from doing it. Since the people affected are responsible for compelling government to limit business, businesses are not responsible for anything. Privatize the gains, then socialize the losses, then blame the government for not stepping in, and ignore the company actively undermining the public’s leverage in the process. Ok, got it. That makes complete sense. It’s decidedly not nihilistic justification for doing obviously unethical things in pursuit of profit.

The third paragraph of my comment already addressed this. A data centre is not a foundry.

In a metal foundry some of the physical externality is intrinsic to doing the process. It's a continuous industrial chemical operation emitting smoke, metal fumes, VOCs, dust, sound etc. You can capture 99% of pollution, but you're still melting, casting, shaking out and finishing tonnes of hot metal and sand. Complete physical isolation is expensive and imperfect.

With data centres, most local externalities are engineering choices. With enough money and sensible siting, you could plausibly build one whose effect on neighbouring residents is extremely close to nil. The biggest remaining externalities occur upstream in the electricity/water/grid system - and those are unusually amenable to being charged directly to the operator.

If a local data centre is impacting you negatively it's a failure of your government because it didn't need to be that way. It's not an intrinsic part of data centre operation. They turn electricity into heat and money, a comparatively simple factory to have completely deal with its own externalities.

People aren’t complaining about the idea of data centers, abstractly. They’re complaining about the actual way they’re being built. To ignore the reality of what living next to GPU data centers is like, and the amount of resources they actually demonstrably use, and instead paint this as a theoretical argument is completely disingenuous.