The intentional cruelty must be visible because they're doing it to gain support from those who want to see immigrants mistreated.

They're not trying to change the rate of immigration, they're just looking to score political points.

After having blamed immigrants for many of our problems. It fits nicely in their strategy.

This is the issue with low trust society. Consulting companies and H1B have abused things so much, people don't show any empathy even for genuine candidate.