Exactly!
For what it's worth, the same issue exists in German speaking communities as well. /r/de is the subreddit for all German speakers. But while the Austrians and Swiss are explicitly invited too, by sheer number of citizens the news about German politics make up the vast majority of submissions in the subreddit.
The same probably applies to my account's instance (feddit.de), though I am not sure if the swiss and austrians have dedicated instances as well. Thanks to federation the effect is lessened, because every country (or otherwise defined group) can have their own frontpage. (E.g. lemmy.ca or lemmy.blahaj.zone)
As @princessnorah@lemmy.blahaj.zone already pointed out (thanks girl!), I never said they would get downvoted. It's just that if US news are upvoted and international news are not, then sorting by upvotes (which any reasonable algorithm will do), will inevitably lead to a reduced visibility of said international news.
Thanks to federation the frontpage itself is mostly non specific memes and tech/Linux content. But if you want a concrete example: here is a screenshot of !news@lemmy.world. the name of the community would suggest well, world news. The reality is ... Quite different:
The nine posts in the screenshot are about:
As i have just explained in my first paragraph this will not be enough. (And that's aside from the extra effort required to keep up said high quality work. Even if it would lead to equal representation, it's an uphill battle.)
Yes, I am sure. I am merely stating a fact. This dynamic develops in any online space with a clear majority group. For example, take the /r/de subreddit. It is the default subreddit for German speaking users on reddit. Austrian and Swiss users are explicitly invited. And yet, by sheer number of citizens the news about German politics dominate the submissions. I do no more resent Germans for up voting content that interest them on /r/de (for example myself) than I resent Americans upvoting content that interests them.
Similarly you can take any other instance that is specific to a group, be it defined via country (e.g. lemmy.ca) or shared interest/experience (e.g. lemmy.blahaj.zone) and you will find that minorities that are not part of that definition will inevitably be suppressed. But these country or interest specific instances do not claim to cover the world. In fact, OP was probably writing this post not due to the presence of US citizens on Lemmy, but due to the overwhelming presence of US citizens on an instance that claims to represent the world. Renaming !news@lemmy.world to !usnews@lemmy.world would go a long way.