I am sorry so many of my fellow Americans have various kinds of prejudices against foreigners and especially people identified as Hispanic.  When we hear new reports of decent family members being deported for the misdemeanor infraction of not getting immigration documentation years and years ago, we almost never see photos of nationals of China, the Philippines, Ireland, East European countries, Japan, etc., although there are thousands living here without documentation from these places.

The ban on grandparents in the Muslim ban was a signal that the Trump administration wanted to use those kinds of categories to eliminate family members from coming on green cards.  (The original logic escaped me...if you are a grandparent you are also a parent coming to see you adult offspring who produced the grandchild!!)

I know that some middle class people have somehow abused the existing system.  I knew a nice woman from Panama who got her parents here...placed them on SSI as seniors.