They need to hire IT, maintainence, and security to run the datacenters, and there aren't many qualified people in the boonies. Small towns are better targets, and honestly also just objectively less damaging to the environment.
None of this NIMBYism is about the datacenter itself, it's all a protest against AI making the economy really shitty for them.
You need on the order of 15 permanent onsite employees to run a datacenter; 5 each for 24/7 coverage of security, building maintenance, and tech. You probably don't really need 24/7 onsite for building maintenance or tech. Traveling employees or (probably traveling) contractors can handle projects that exceed the local scope.
Should be able to locally source security and building maintenance, if the pay is good. These are skills that are needed everywhere. The onsite tech can likely be sourced locally too: first and foremost, they're remote hands ... knowledgeable remote hands are nicer, but the mandatory skills are: read and follow directions, notice and report unusual circumstances, lift and manipulate heavy objects. It's not rocket surgery.
If you put your datacenter in the near boonies, say 30 minutes away from the nearest suburb, you can usually still find the big lots you need, and people can commute from there: a 30 minute commute with no traffic isn't too awful. Of course, you'll have neighbors on large lots who didn't think through that living out on the boonies with no zoning meant noisy neighbors could move in. :P
Sounds like they should build the equivalent of a little mining town out in the boonies too and start working on the housing crisis simultaneously. “Move to Nowhere, USA, and get cheap, new housing and a good-paying job” would get them the talent they want.
EDIT: yes, I know mining towns had their own share of problems (I’ve heard “16 tons” too), but knowing the hazards of the past, I think we can figure out a more equitable structure with this kind of setup.