I agree with title and most of the points. And I definitely don't want platforms to just arbitrarily censor what they believe is "fake news". But we also can't

I agree with title and most of the points. And I definitely don't want platforms to just arbitrarily censor what they believe is "fake news". But we also can't dismiss the responsibility of the platforms. The sort of systemic change that this piece alludes to needs the companies to be involved. They are a huge part of "the system" — part of the problem. As the piece itself says: "We need to work together and build coalitions of groups who do not share the same political and social ideals to address the issues that we can all agree are broken." That cannot happen when the incentives and UX promulgated by the platforms are fighting against any sort of social cohesion. Platform changes are critical to bootstrapping ourselves into a better media ecosystem.