Look. 

You don't have a ****ing clue what the "rules" are. Ok? Am I wrong? 

And as far as that goes, the Obama administration had programs in place the assisted people and governments to help people stay in their home countries, and by and large, it was working. Then Trump came in and immediately axed those programs. The results were predictable. Create a problem, then "solve" it, in the most ham fisted way possible.