I wonder if this has to do with the current economy and job market. Anecdotally I have found it very tough to find a new job (software engineering), though my previous employer continues to post job listings for green card applications as part of the required labor market test.
I'd say it's on the Trump administration being full of racists and white nationalists and wanting to deport immigrants.
Why do you wonder if it's economic instead of the Trump administration's announced policies of stopping immigration, including unconstitutionally removing birthright citizenship?