If anything the pro-build people should be for regulation so that citizens can know a local buildout means no power outages, water shortages etc. - preventing communities from rejecting DCs for purely defensive reasons.
It's clear the AI companies have not managed the message here, they have fumbled the politics. This is a deserved loss on their part.
Dog-catcher candidates were taking disingenuous anti-datacenter stances if they thought it could get them votes.