Many public policies are poorly crafted, intentionally divisive, and have unintended consequences. Often irrational and unaffordable (often Ponzie like) and redistributionist. If the proponents really cared about health care or education (for examples) they would become a nurse or a teacher. The end-game is political and economic socialism and bigger government.
DACA is particularly troublesome since two major problems are in play. The Free Rider (as usual) but also the Line Jumper problem. How to address both of these to everyone’s satisfaction?