The UK has its own version of the DACA issue, with a twist: the people threatened with expulsion were British citizens when they moved there from former colonies, and they are legally entitled to live there. They just don't have documents to prove this.

One MP knows of 16 victims in her constituency, which leads to a quick rough estimate that the victims number around 10,000.

Another pertinent secondary point is that they have paid taxes there for decades, so denying them medical and retirement benefits is robbery on top of exile.

The cause of all this is that the government has decided on the principle of giving all immigrants the short end of every stick. That's what the US is now doing. While the details are different, this attitude systematically leads to cruelty.