Or is it really? I am honestly curious what are the arguments? I can find one to the opposite, like humans did not evolve in the arc welding environment, while the cruelty was not unknown to our ancestors. I would expect that there are many people well equipped to deal with the latter.

Yeah, I'd agree that no-one is, which is exactly why I also think this kind of job should be automated away -- to spare the real humans from having to deal with emotional cancer.

I spent ~6 months working on tech to detect potentially-suicidal people online (which required a lot of manual flagging and review) and it's one of the most emotionally draining jobs I've ever done. It's a weird feeling to think it's an incredibly important job, but not want to recommend anyone ever do it -- that seems like a perfect role for automation to slip in.