Anon, this daca decision today means nothing. It'll be appealed to the Federal Appeals Court, and then, if need be, to the Supreme Court. By which time, Kavanaugh will be a sitting justice. And it'll get killed officially and finally.
While this is wending it's way through the courts, pay attention to what's happening in the administrative agency realm. You'll see that the program is being chipped away at, reduced, little by little, by DHS and Immigration.
https://www.uscis.gov/humanitarian/deferred-action-childhood-arrivals-response-january-2018-preliminary-injunction