I think we’re pretty much in agreement, as I don’t think corporate censorship and propaganda is coordinated so much as it is aligned towards similar interests. This lack of coordination can actually be a strength though because it creates divisions that can then be levaraged by the same corporations towards their aligned interests (such as suppression of labor organizing). I believe this element of division actually makes censorship/propaganda in the US more effective - at least in some ways - than the censorship/propaganda of more autocratic regimes.

Of course US oligarchs don’t have the same tight control over the sharing of information that oligarchs in autocratic regimes do, as evidenced by the existence of platforms like Lemmy, but as long as the alternatives remain small and ineffectual it doesn’t matter. TikTok is not small and ineffectual, and by nature of it being owned by a Chinese company is free from manipulation by US oligarchs. This resulted in narratives that the US wants to suppress (such as pro-palestine/anti-israel narratives) being widely disseminated on the platform. This is the main reason TikTok is being forced to sell to a US company.