It's fine to concede that the world isn't perfect - but saying that because you aren't well protected as a worker and that therefore immigration is wrong is non

It's fine to concede that the world isn't perfect - but saying that because you aren't well protected as a worker and that therefore immigration is wrong is nonsense. And I wasn't asking for a magical pony with wings - I deliberately set the bar very low, "relatively humane" is table stakes.