No they aren't because it was never about the externalities of the data center itself (for most - it was for a few people who actually were screwed by the noise, for example). Instead, it's because most of this crowd are anti-AI luddites who hate that change is happening too fast for their minds to comprehend or adapt to.
They stand in the way of a nearly limitless number of positive outcomes from this technology and directly have blood on their hands that they wipe away with thought terminating cliches like "precautionary principle"
Or look at it this way, a massive change has been forced on the public through the decisions of a small number of people. Basically the whole "Accept your fate, it is inevitable" backfired spectacularly. The people were robbed of their agency, their democratic process. This is just the democratic will reasserting its agency.
I think that ignores the scale and speed of what is happening with the buildout. That it's gotten to the point that states are putting in moratoriums, thats pretty incredible. I've never seen political government forces mobilize this quickly except in some sort of emergency situation.
I'd also wonder if the folks who don't want to live within 3 miles of a data center are OK with the data center flying over their head