Yes, I think that's the most sensible framework for looking at this. The challenge is that antitrust laws may need to be updated or reinterpreted for platform c

Yes, I think that's the most sensible framework for looking at this. The challenge is that antitrust laws may need to be updated or reinterpreted for platform companies. And there doesn't seem to be too much political will for that. All sides mainly seem to support laws and private action that align with censoring views they disagree with and forcing hosting of views they support. Well only make progress when people (a) agree there will be views they don't like or agree with on the internet and (b) as you say, outside of a monopoly power situation, private companies can choose what they decide to publish or not publish.