People exposed themselves to Facebook multiple times a day, every single day, seeing headlines making all sorts of crazy claims, and filed them in their famil-o-meter for future reference.
If Facebook was a tool for confirmation bias, that would kind of suck. It would. But that is not the claim. The claim is that Facebook is quite literally training us to be conspiracy theorists. And given the history of what happens when conspiracy theory and white supremacy mix, that should scare the hell out of you. I’m petrified. Mark Zuckerberg should be too.