It's possible you were right, if we can interpret the "attack" as being purely intended to undermine the original argument.
I just didn't personally interpret it that way... it looked more like a side-observation to me, something like "name-calling" under Paul Graham's categorisation:
https://en.wikipedia.org/wiki/Paul_Graham_(programmer)#Graha...
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.
I have no faith in AI to handle nuance like this: https://www.theregister.com/2020/10/28/gpt3_medical_chatbot_...
I see no reason why there can't be a mandate to provide mental health benefits to these workers. It is absolutely a safety hazard.
Individual workers might not price in the societal (or individual) cost 20 years from now of breeding mental issues in these workers now.
Or another example: You own 50% of the forest land in your community, which for sake of argument produces 50% of the community's oxygen (assuming a closed system). You start cutting down the trees to produce furniture and sell them. Generally the cost of oxygen production is not priced in, and down the line, someone will pay for it. Either individuals getting sick, universal health care, environmental efforts in replanting, regulation on land maintenance, etc, etc.
I suppose you will argue that each individual will need to save a buffer for every network effect for every purchase decision they ever make that doesn't price in externalities, in pure capitalist spirit. But I hope my point hits that there has never existed such a system, or if it did, it died out pretty quickly, and left no trace in history.
We can and should all have opinions on health regulation, environmental taxes, etc regarding what their effect ultimately becomes, but everything from societal mental health to environmental effects will always leave a bill, and someone will pay for it. The only thing we can discuss is if it should be everyone for themselves, our great great grandchildren, taxes, or corporations selling crap too cheap (or in OPs case for free).