Just to be contrarian: what we're talking about is "electricity use from economic activity". This should be good for Ireland but they'll need to build energy capacity to keep up. It's misplaced to be angry about datacenters themselves. There IS value being created, or people wouldn't use the tools. Construction creates jobs, manufacturing the machines in the buildings is a huge global industry; the value people gain…
But for who and where is it realized? Ireland’s massive data centers aren’t there to serve Ireland’s tiny population. The value is exported overseas and profits realized overseas.
So what really matters for Ireland (and any country/region hosting these data centers) is whether the benefits in terms of capital spending + the few ongoing jobs created outweighs any increased electricity and environmental costs faced by everyone else.