I can spam or send misinformation here just fine without being a corporation. And it's legal speech. Should platforms not be able to moderate this?

> news organization and such to have unrestricted speech [...] by keeping them in a separate category and excluding corps

This is an misunderstanding of "freedom of the press". The "press" is a reference to the printing press as a device itself. News organizations (which are usually for profit) have the exact same rights to free speech as anyone else. The natural analogy is printers and the right to publish information online.