It is a circle. Society influences facebook, facebook feeds back into society. For example, I’m convinced facebook’s amplification of pro-brexit and pro-trump messages in those campaigns was instrumental in their victory. No facebook, no president trump. I’ve also seen how facebook turned my sister into an anti-vaxxer.

In essence you can look at facebook as a platform for information warfare. It tends to amplify lies, and some forces are more able to exploit that.

It is your sister. You probably talk to her. Try convincing her. If you fail, is the Facebook to be blamed? I do not think so.

Yes. Because what is one voice (even family) vs the 100s of voices and constant reaffirmation of lies and misinformation.