Just because terms and conditions are similar doesn't mean there is collusion. Your claim is that this grouping of companies that isn't even well defined per the wiki article is taking actions as a unit
I've explicitly and repeatedly said competition not collusion.
When you asked for proof, I thought you were asking for proof that they could remove people from their platforms for reasons other than legal obligations; that is what I am saying is evidenced by the T&Cs.
You asked me "What power do they have?", and this is that, and https://news.ycombinator.com/item?id=32876080 was about that too, and was not whatever you're trying to make this about now.
