Well they do pay taxes of varying types often without recieving anything back (re: those paying Social Security) as well as the layers that go with their input in their economy, but she needs to zip it.
Capt DerpBlasshole just made it so that illegals can get free medical care if needed here while NYC is in a massive budget hole.
Oh, but 500 of his staff is going to have to take a 5 day furlough, saving the City round $800,000+, so whoo whoo for sacrifice.