Maybe the subscribers of the Post? They (reportedly) left in droves after Bezos interfered to stop the opinion board from endorsing a candidate and more recently fired nearly all international reporters. (including those in warzones)
He owns the paper and can do what he wants within the bounds of the law, but anyone is also free to criticize the decisions he makes, and subscribers are free to unsubscribe.
Criticism is about what someone ought to do, not what they can do. (these are very different)