Your first sentence is the exact reason why propaganda thrives in social media. There's an understanding that fellow people are somehow more trustworthy than Big Media. The part that's not considered is that people on a whole are not able to understand every intricacy of problems out in the world - but they sure do love sharing opinions about every problem as if they do understand.

Given this, easy-to-digest messages are easily amplified through social media and every complex detail is withered to nothing. This is why I stopped using Lemmy. The larger communities (read: the only ones that get any posts) ended up being a worse echo-chamber than every other platform due to people repeating the same simple concepts ad nauseam.