How many millions of users does it have? How many posts? How active are they?
The number of discussions about American politics are orders of magnitude higher than discussions about any of “other topics”. This is more than enough to justify the use of hyperbole.
Nobody is denying that discussions over American politics are very active.
Thankfully, those communities can be blocked.
On top of that, !asklemmy@lemmy.world added a new rule against US politics questions, so new questions are about anything else.
Random post from yesterday, 158 comments https://feddit.org/post/6407464