How many “participation trophies” did you get growing up?

This is a career, not flight school. Captains are not flight instructors.
You’re 100% right a CA has the right, the responsibility, to look at the FO and tell them to “do your job” if they aren’t doing your job. Hurt feeling? Who cares. FOs have No Fly Lists, have at it.

It’s very simple, show up prepared, done.