Our educated workforce will determine whether or not the United States of America succeeds in the future or not. Our undocumented students are also part of these numbers, today they are able to go to college but it's impossible for them to exercise their degree, making our workforce weaker every day. By documenting these students, we will have a more competitive workforce for tomorrow.
An immigration reform needs to pass shortly after, not doing so will not achieve a single thing. While working immigrants are not the source of the problem, there is also criminal immigrants that need to be dealt with which is only possible when an immigration reform passes because it will force every single person to get their background checked.
There's no immediate fixes to this issue, it takes time.