This is not a Facebook problem, nor is it a problem that can be fixed structurally since a fundamental disagreement about what constitutes fake news exists alon

This is not a Facebook problem, nor is it a problem that can be fixed structurally since a fundamental disagreement about what constitutes fake news exists along partisan lines. When 'fake news' aligns with an individual's bias, the truth has now become the lie. Any attempt to wrest the non-aligning view-point from the realm of facts is met with a doubling-down and a recursive poisoning of every well. The only viable solution must come from the top-down. People will only reject fake news when leaders emphasize critical thinking and shoot down false stories, especially when the fake narrative is favorable to them or their position.