Did Obama say he didn't have the right to issue DACA?
Yes, he had already admitted he didn't, which is why Maher said he was acting like a king when he did it anyway.
The bigger issue is that in 2010 and 2011, Obama reserved the right to enforce immigration laws selectively. His emphasis was on deporting criminals who were undocumented, rather than undocumented students or workers who presented no threat to public safety.
No, the bigger issue is that no one has either the legal authority or right to come here illegally, bring someone here illegally, admit someone here illegally, or harbor someone here illegally. All of those things are, you guessed it, illegal.
Further, no families are being separated by enforcing immigration laws. All illegals, unless incarcerated for other crimes, are free to leave any time, and their families, unless incarcerated for crimes, are free to accompany them when they leave.
If they are separated, it is their own choice, their own doing, not the fault of the US government. Let them take what they've learned here and return to their own countries, of which they seem so proud, to do there what has already been done for America. We don't need them here for that, but their own countries evidently do.