> If that’s not illegal, perhaps the legal system needs revamping.

Advising people to commit visa fraud might well be illegal under US law, but given that it all happened in SK, would SK be interested in extraditing them? And would the US taxpayer support spending what that costs?

Knowingly hiring visa fraudsters is probably illegal, but proving intent would be difficult. And if you lower the burden of proof too far then companies will find any excuse to not hire non-white people, which probably isn't what you want.

The ESTA application emphasizes that it's personal and the conditions you have to comply with. I think that's well and good - if anything I think it would be better to scrap the H1-B system of tying people's work visas to specific jobs, that's a big part of what leads to immigration suppressing wages.