I'm pretty sure it's mostly ideological problems with AI, rather than any concrete impact on the communities data centers are near. Data centers are just not that big or impactful a structure, and they're also not particularly new. What is new is effective AI being a force visible to the lives of people, including activists of various stripes who who are threatened by it and want to work against it by attacking data centers.

Honestly, I think it's possible that there isn't really organic opposition to data centers from people living in communities near them at all - but instead, there is opposition to them from people like Mother Jones magazine journalist Sophie Hurwitz, who is therefore motivated to write an article reporting on Maine banning data centers while framing it as a reasonable policy, and implying that this is a reasonable thing for other local governments considering data center bans to enact.

I note that every person cited in this article is some kind of national-level ideological actor - a member of a pro-data-center lobbying group; a researcher affiliated with the Federation of American Scientists which is a NGO headquartered in Washington D.C.; the head of Good Jobs First, which is another Washington D.C.-headquartered nonprofit; and several well-known national politicians who are already known for being suspicious of the tech industry.

There's no quote from any ordinary person in Maine who talks about some concrete negative impact of a data center near them - the closest thing is a link to an article with a quote from the Maine state representative who sponsored the bill, which states: "“It’s not that there’s no place for data centers in Maine,” said Democratic Rep. Melanie Sachs, who sponsored the measure. “Frankly, the tradeoffs have not been shown to be of benefit to our ratepayers, water usage or community benefit in terms of economic activity.”. The idea that data centers use a particularly large amount of water is basically complete bullshit promulgated by national-level prestige journalists (https://www.andymasley.com/writing/the-ai-water-issue-is-fak...), which makes me skeptical that this is an issue brought to Sachs' attention from her local constituents.

Data centers really do use a lot of electrical power, but the article has the quote "n Maine, electricity bills have already increased by 58 percent on average over the last 5 years. Much of that price jump is likely due to the state’s reliance on natural gas—but some Mainers fear that data center buildout will only increase their expenses.", which is the sort of thing you'd write if you were trying to associate a rise in electricity costs with data centers without being able to demonstrate that data centers are actually causing electric power costs to increase for ordinary people.