Anecdotally, this seems fairly common but perhaps not to the same intensity that you've alluded. The way I helped curb this at my workplace, which may or may n

Anecdotally, this seems fairly common but perhaps not to the same intensity that you've alluded. The way I helped curb this at my workplace, which may or may not be applicable to you, was by always back-tracking to the person who was cut off. X starts saying something, Y cuts them off. As soon as Y is done speaking, I ask X: "Sorry X, what were you saying?" while ignoring Y. This non-confrontational approach seemed to work, at least in my workplace. Y quickly began to realize that they were cutting off X and that the table was interested in what X had to say. Unfortunately this requires two people. If you are the one being cut off, without someone else to step in, this is a hard problem to deal with.