Well done for writing your story on Pprune because it gives heart to other readers who have suffered under similar prigs in that it happens to the best of us. Important however to look at the long term in these cases. The unassailable fact of life is that any first officer who complains officially about a captain's behaviour in the cockpit is treated as a "problem" pilot whether you like it or not. The company may be forced to agree with your actions but it will quietly and behind your back add a note to your personal file which may not be complimentary.
It takes a certain amount of moral courage to dob in a problem captain, but management rarely accepts that. Of course in situations where there is a dangerous flight safety event in the process of happening (highly unstable approach - good chance of heavy landing - landing very long on contaminated runway, and so on), then to hell with your career - do something fast but make sure your voice is loud and clear on the CVR just in case.
Apart from, that it is best in the long run to button your lip but make sure you make all the required "support" call-outs. When you get home that night, make a note of what happened and keep it under your pillow, so to speak, in case questions arise later. Every airline pilot has struck the same sort of command idiots in their career - just play it real cool.