Sounds like just another way of saying "groupthink".
It's a rebranding of the concept of groupthink which has been around as long as hominids have been in groups and have been thinking. It's not a form of privilege. Rather, it's the nature of our brains. We are social animals. We prefer not being ostracized. We self-censor as a result. This is not a privilege. People who groupthink are not more privileged than those who don't. The only privilege is the ability to say "yes" to the group more frequently.
It's a rebranding of the concept of groupthink which has been around as long as hominids have been in groups and have been thinking. It's not a form of privilege. Rather, it's the nature of our brains. We are social animals. We prefer not being ostracized. We self-censor as a result. This is not a privilege. People who groupthink are not more privileged than those who don't. The only privilege is the ability to say "yes" to the group more frequently.