This has been repeatedly debunked. Data centers provide temporary construction jobs, but those jobs are rarely local unless built in a major metropolitan area. Otherwise the data centers are almost completely automated. The Facebook data center near where I live is absolutely massive and employs about 150 people. Its 5 buildings each about a 1000ft long and 2 or 3 stories, if there is nothing underground.
150 employees in a community of a few thousand or even 20 thousand is a massive boost to the local economy. Some places these things are being built have had declining populations for decades and haven't been new jobs in as many years as well.