The internet originated in the US. All of the original specs were made by Americans. ASCII is literally built around English, and ASCII is at the foundation of every single core technology of the internet. Hell, even when they designed UTF-8, it was still Western-centric; to this day it gets some push back from the Orient, because it's makes things harder for them - I think there was a fight to standardize on UTF-16 because it was easier for Asian languages; I may not be remembering the details correctly, but there's some legitimate beef some Asian languages have with UTF-8.

Now, obviously, more non-Americans are on the internet than Americans, but it's the same argument as Critical Race Theory: when the entire foundation and infrastructure is built on a bias, that bias influences all interactions even when isn't overtly obvious, or even intentional.