And the captain is there to run the operation, not alienate the crew. 25+ years in aviation, most in the left seat. Rule number 1 for the captain: Just because you can say anything, doesn't mean you should.
The Captain is there to keep the passengers, crew and aircraft safe not to be all things to all people. Some do it really well and don't alienate the crew but some like to use it as a forum to espouse all manner of ideas. something that is not limited to the Captain. I got tired of listening to F/O's go on an on about what they and their partner were planning for dinner. I did not need any more self-serving advice on how to replace my salary by investing in bitcoin and/or forex and how they couldn't afford to by a house in the city but could afford a 100k Tesla. At no point did I consider that leaving the flight deck for "a mental health break" was necessary.
When I was an F/O and I flew with a Captain who was annoying (It is not a new phenomenon) I just didn't engage in the conversation, its not difficult and shows a level of maturity that bugging out of the cockpit does not.