This is the fundamental issue: Engagement-based algorithms made social media giants some of the most lucrative companies on Earth. This is important, but these questions are about putting out fires. AdvertisementLiability would incentivize changes the companies know how to make. Greater engagement means that users see more ads, earning Facebook more revenue. Human nature being what it is, the content most likely to keep us glued to our screens is that which confirms our prejudices and triggers our basest emotions.
Facebook knows how to put out fires.
( z0 know :ARG0 ( z1 publication :name ( z2 name :op "Facebook" ) ) :ARG1 ( z3 put-out :ARG0 z1 :ARG1 ( z4 fire ) ) )
(z0 / know-03
    :ARG0 (z1 / publication
              :name (z2 / name
                        :op1 "Facebook"))
    :ARG1 (z3 / put-out-09
              :ARG0 z1
              :ARG1 (z4 / fire)))
Facebook knows how to put out fires .
z1 :name z2
z2 :op1 0
z0 :ARG0 z1
z0 :ARG1 z3
z3 :ARG0 z1
z3 :ARG1 z4