Agree totally on the hazards of SA. I guess the issue is this: the guys that run this outfit are a bunch of cheap screws, and won't do two IOEs in different divisions if they can avoid it.
Your CA is a world-class jack-A for not taking input. I've flown recently with a couple of CA's who right off the bat said "I'm new and looking for input." And I've said the same thing as an FO.
I'll never forget a new CA who was also an ass, and he made it known early in the Narita trip. On the leg home, he slowed to 190 knots, flaps and gear,
with over 20 miles to go before we even intercepted a 12 mile final. The FB and I (FC) look at each other with a classic "W-T-F is he doing?" look but said nothing. Of course, we got reamed by approach for flying so slowly, and totally screwed up the arrival for everyone else.