I guess it is a consequence of the Reddit migration where the habit is just keeping the old community name. But having C/Politics being US only on Lemmy.world, an instance that aims to be international (hence the name), seems weird to me.
Would have been cool to give up this assumption that everything is related to US by default when moving away from Reddit. I mean, even the canadian political news of Lemmy.ca is CanadaPolitics.
It should change its name to US Leftist Politics. The mod u/YoBuckStopsHere is responsible for 80 percent of the posts and its comes with their bias. Their mods also delete posts and dont enforce the TOS. If you want to have any educated discussion about politics, thats not the place. Its a very close minded, hostile crowd over there.