Earlier quoted context omitted.
Trump tweets lies to 16 million people at a time. The Pizza shop conspiracy was heavily marketed on Reddit, and I'll bet the shooter today got all his info from there. These platforms have a HUGE problem.
I follow him but i have never seen his tweets though. They are big but not as big as facebook especially in the emerging markets. My mum uses FB everyday but she has no idea about reddit whatsoever. She has heard about the name twitter from some news channel. Do you understand the difference?
Facebook has 1.7 billion users; that is more than Twitter's 313 million and Reddit'a tens of millions [1].
I am agreeing with your point, in this limited case, albeit not with how you're making it.
[1] https://www.statista.com/statistics/272014/global-social-net...