I've got 1322 communities blocked myself 😂. Still plenty of content to view using either the 'all' feed or my front page.
I also use filters a bunch, which helps with stuff like excessive posts about certain creeps in tech or getting spammed with quasi-duplicate posts across multiple communities that I otherwise want to see content from.
Got a few instances blocked as well - seems like Lemmy has a pretty good set of tools to customize content.
US Defaultism is a thing on the internet. I've seen it plenty here to the point of thinking of starting a USDefaultism community just to make fun of it all.
If it actually bothers you to the point of where you're tired of seeing it, I'd recommend blocking (or filtering, depending on your Lemmy client) some US-centric communities or maybe even instances to bring some more balance in your feed.
Yeah, bad phrasing on my part, sorry. To have a laugh with it, would be a more fitting way to put it. Not necessarily at the expense of the person posting or anything.
Sure it's annoying but it's a pure population distribution issue, same as for reddit, and unless more of your own countrymen are in here, it's going to stay that way.