That is not how I understand the issue of corporate influence in American politics. It's not so much about how a corporation carries out its business as it is about its ability to influence policy through financing of politician's campaigns.
All you say is true, Termi, but the issue of the regulation of speech by social media companies has ALSO been in very serious discussion in both leftist and right-wing circles for a very long time. Perhaps it's because I've been in the Youtube scene following independent media for years now, but this has been a big deal. The influence of Capitalists even over media outputs is also a part of this discussion: paying politicians isn't the only way monopolies corrupt society.
Does "oligarchy" it affect both parties? Probably. But it's right-wing in origin. Corporations are able to get off with favorable taxation terms and regulations under Republican administrations. The Democratic party is generally "hostile" to corporations on that basis. So their influence is not as pronounced on the Democratic side. There is a reason AOC and ilk gravitate towards the Democrats rather than Republicans. It's because in a nutshell, they are definitely not the same. That's why Keystone pipeline, Arctic drilling etc are on Biden's chopping block. No. They are not the same.
Honestly, I'll wait for them to actually be chopped first before I give Dems a shred of credit. Biden so far has promised the moon and delivered crumbs, like Democratic presidents always do: Minimum Wage, Yemen, Private prisons, even this patent-thing. Right now, they are even dropping the climate business we were promised was the most important crisis of our time. I've learned to wait to see
what actually happens in implementation, not what Liberal media hypes up. Sure, they make certain they are slightly better than Republicans to keep their base happy but will
always leave office with things 99% the same, even when they control both houses.
AOC in her second terms has morphed into a centrist Democrat in everything but the Israel-Palestine issue. She blocked the force-the-vote movement and even donated against progressive candidates and was heavily criticized for it by leftists. People who go to Capital Hill eventually succumb to the game: the power of Capital. You should see a video of Pelosi 30 years ago I saw some months ago, as a fresh congresswoman. She was exactly like AOC! Singing universal health care in detail and whatnot. Right now, you can't even say she's the same person. So, respectfully, I disagree with you. The American government is a tool of the oligarchy, including the DNC, and its biggest politicians. Everyone goes to Washington with good intentions but eventually succumbs to business as usual, unfortunately.