It’s because a lot of people migrating from Reddit landed on .world and created or found their familiar named communities and that’s how it was on Reddit - US centric top level type communities.

Is .world the best place for US centric communities? Maybe not just based on nomenclature but since you asked why, that’s the reasoning. It’s in the description of Politics specifically (it even calls out migrating Redditors).

So you’re saying you don’t want insightful, thoughtful comments from u/rimjob_steve this time around?