Any municipality that tries to do this will not get a DC built, and the one next door will promise a 3 year tax abatement or other special privileges to get it instead. It's a race to the bottom thing.
You need a coordinated policy to encourage everyone to tax them extra, or to require them to put down money for new electrical infrastructure or so on before they break ground. It would be good to have federal action on that.
Not true in Memphis. The city is reaping massive new tax revenue despite fighting datacenters