Earlier quoted context omitted.
There is a difference between enforcing the law (you can't bring workers here on a tourist visa) and raiding a factory putting everyone into jail. For the purposes of "was it a reasonable action" yes it is important to understand how the US has acted in the past.
In this case for at least some of those people there was no visa and no visa needed. South Koreans can make trips for business purposes to the US without any extra paperwork as long as it's under 90 days. It's true that what counts as 'business' and not 'work' has always been an ambiguous line, but given that the arrestees include executives who generally haven't been historically subject to this kind of treatment, I…
I was merely using a steelman argument to attack the actions taken as inappropriate regardless of legality.