People say this and then use AI for literally everything they do.

In my experience, there's not a ton of overlap between people who say this and people who use AI for everything they do... but most people who say this do use social media, cloud storage, on-demand video streaming, and plenty of other things that rely on data centers :)

Not for nothing that YouTube alone is responsible for a double-digit amount of all internet traffic.

I think this is just projection.

Consider that there may be large populations doing both, but the overlap might be less than the internet jockey concludes via finger-in-the-wind hypocrisy check.