As long as those private companies don't have any financial arrangements with government whether through usage contracts, grants etc. or legislation that would

As long as those private companies don't have any financial arrangements with government whether through usage contracts, grants etc. or legislation that would compromise their "private" decision making. Now applying that filter, the censorship landscape looks very different doesn't it? Government using private companies to censor, is still censorship. Governments lean on private companies with carrots (financial grants and usage contracts) or sticks (legislation), and when that happens you can no longer consider those decisions to be free of government interference.