A huge portion of social media is from bots. Twitter removed millions of bots this week and it doesn't even dent the bot population there.
Foreign countries target American media because its military + nuclear arsenal is unbeatable in a full-scale war. No country would ever consider a war with America, so as a result efforts are dedicated to weakening it from within through psyops. Hence, lemmy.ml exists.
https://www.cybercom.mil/Media/News/Article/3895345/russian-disinformation-campaign-doppelgnger-unmasked-a-web-of-deception/
Huh?