I think your latter point is one of the defining sociocultural challenges of our time. We have stressed openness and fairness in public discourse to the point of enabling actors who 1) seek to undermine that public discourse 2) hold positions that are really spurious in relation to the discussions we need to be having. E.g., the public should be arguing over how to respond to climate change ---especially the social and economic trade-offs that might be necessary--- rather than about its existence.