Nuclear has advantages, but no one will vote in favor of a small chance of nearby catastrophe… given the choice.
The problem with this theory is it takes too long between the step where the boosters sell the town with job creation and when the plant can't be cancelled. If you get a city on board today, chances are you won't have a permit in 10 years, and you need to keep them on board the whole time until the permit is issued or they'll derail the permit. It's better to keep them on board at least until the reactor is fueled... but once it's fueled, the jobs engine will probably sustain itself.
Actually, these datacenters are much, much worse in different ways if you'd consider they are much bigger, louder, and resource-intensive. While hypermarts put local business out of business and take up comparatively less land including parking lots (while still being huge), their effects are bad but in different ways, especially given they abuse low wage workers who require government subsidies (indirect corporate welfare) and when they leave suddenly they create food deserts.