I'd rather we sorted out what 'the commons' means in an online context, but failing that? Yes. Because we're essentially privatizing all discourse and those companies can do pretty much whatever they want - as long as they don't piss off other companies too badly (eg, Twitter being demonetized because of Nazis).

We've lost the idea of broadcasting in the public interest decades ago, and there's no PBS for the internet (Just PBS on the Internet)