I think their main point was that under capitalism, people will only ever be viewed for their economic utility - exploitation of affected groups is inherent to that reduction in a human’s rights and their contributions beyond menial labour.

So the take isnt defending the status quo, it’s saying how the best case scenario in an inherently soulless and uncaring system is to be paid cents on the dollar, and that more intervention to secure better pay, respect, and working rights, by definition, will always move further and further away from “capitalism” in it’s purest, most discriminatory forms.