This is kinda meaningless without knowing how much data goes through a given data center, and ultimately how many people-hours it ends up serving. A data center is just a concentrated processing center for many people's computing needs, so of course it's going to use a lot of power. If you removed the centralized data center and spread it out all over the world, that same amount of computing will be even less efficient, and use even more power, especially accounting for heating and cooling.

If the argument is that AI training is wasteful, well, yes it is, but it's also valuable enough that many people and billions of dollars want to keep doing it. And if they bring back enough nuclear, power won't really be an issue anyway. But whether it's concentrated in a data center, and whether a particular data center may end up using more energy than some random city, is completely irrelevant and really misleading as an absolute number instead of a ratio of energy consumption divided by usage.