Earlier quoted context omitted.
So the fields would be left fallow if governments enforced their laws properly?
In some cases, yes. California farms are having problems finding people to work in fields since border control got tighter, and American's don't want to do the work, even for $15+ an hour. The farm owners said they're switching crops over to ones that are easier to harvest with machines. Similar things have happened in the South-East USA, where crops have been left to rot on the field because the government started c…
If you had to find a humanitarian angle here, you should ask what the people who were previously working in the fields should do for work instead. Is unemployment the only alternative? Or can the large numbers of people who are currently migrant workers be incorporated into the economy in a different but productive way? I don't have good answers to those questions.