This is the exact same argument used all the time to justify censorship. Most people agree about government censorship being bad and corporate censorship being fine.
However, what people miss is that this is government censorship. To think what's going on now isn't government suppression is completely naive. There are several examples of the US government influencing social media to have them censor. They admit it all the time.
Here's an example:
https://news.yahoo.com/psaki-white-house-flagging-covid-1856...
And this came out more recently:
https://www.mintpressnews.com/meet-ex-cia-agents-deciding-fa...