Putting someone in front of the worst of humanity (CSAM, murder, suicide, bestiality etc) for 9 hours a day at $2/hr seems inhumane because it may very well change who they are and how they think. Add to that the fact that it's sponsored by the richest companies on the planet for the benefit of the upper half and you get the current, IMO justified, criticisms.
someone has to do it but it's not a decent job. Content tagging and content moderation are basically the "ditch digging" of the white collar world and often comes with significant toll on those exposed to such content continuously.
This could imply banning the industry, but since most agree it's necessary, most would probably be in favor of psychological counciling and greater pay for these workers.
The point is we're subjecting desperate people to trauma before limited to first responders, police, and military, while providing them none of the pay, job security, or counciling of these above specialities.
You're phrasing this like third world countries have similar labor markets to the US, where anyone and anybody can go and find a high paying, "comfy" job.
Third world countries provide the convenience that first world countries like the US have come to expect. The cost of providing that "convenience" is that millions of people in India/China/Africa/Southeast Asia work for almost nothing to produce cheap crap that people buy in the US and then dispose of like it's nothing.
If anything it's patronizing to say that staring at disturbing content all day is preferable to agricultural jobs, you know, the jobs people have been working and enjoying for literally tens of thousands of years.
I am not saying it isn’t done today. Just that we should consider that as an option when coming from either side of this debate.