I SERIOUSLY doubt most Americans give a shit about DACA one way or the other. Americans are largely a "it doesn't matter if it doesn't affect me personally" people and DACA doesn't affect 99.99999% of Americans one way or the other, so they don't give a shit.
This is a classic example of a dog whistle. The only ******* people who care are the morons , the vast majority of people are scratching their heads and saying to themselves "who gives a ****?"
And this swings both ways by the way, most conservatives don't give a shit if those 800K "kids" are allowed to stay or not.
This is only a major issue because politicians on both sides work hard to make it one.