Intellectual work requires a bit of creativity (across all the domains I can think of), abuse, of any kind increases stress, stress decreases creativity, ability to problem solve, and resilience (or the ability to endure the difficulty of solving hard problems).
But even if that wasn't true. There's a significant difference between confronting the harshness of reality. And behaving in a way that makes reality suck more. Every human deserves to be treated with dignity, and a base level of respect.
Suggesting that someone is fragile and weak, because they object to being insulted, or object to the careless and needless stripping of dignity and humanity from people is a wild take.