Data centers are good for communities if they are properly planned for. I have seen the development plans for them - they plans include massive investment in infrastructure including huge investment in increasing power generation. Those plans are reviewed and tested by credible third party engineers, energy advisors and urban architects. It probably won’t surprise anyone to learn that Florida is probably more on the ball about having a good planning process than other states.
But if you have a corrupt local planning commission or county zoning board who are in bed with the developer then yes, putting a data center into a community can turn into a disaster.
Since data centers generally bring in people from outside to run them once they're built, they generate no jobs in the communities they ruin apart from construction work during the initial process of building them. Once they're built, they contribute absolutely nothing, unless you see taking up valuable real estate that could be better spent on other things and raising everyone's utility bills "good for the community".