Always imagine whatever government excess you are ok with in this instance is now going against your position and see if you still like it.
German Chancellor Angela Merkel objected to the decisions [of banning Trump], saying on Monday that lawmakers should set the rules governing free speech and not private technology companies. https://www.bloomberg.com/news/articles/2021-01-11/merkel-se...
Emmanuel Macron blasts social media platforms for banning Trump https://www.axios.com/macron-social-media-bans-trump-twitter...
To the average person, "really big powerful company that stands above ordinary competition and choice dynamics, influences politics, dominates a business sector or other realm, dictates rules to a market and such."
In many parts of the world, if you are a politician, journalist, celebrity or other public figure, twitter is extremely powerful... a determining factor in hundreds of thousands of careers. What trends on twitter trends in society.
But no, it doesn't fit neatly into a "cornered the market for turnips" box.