We need a halt to all immigration, legal and otherwise, until we can get this whole thing sorted out. We need to seal the southern border for one thing. End foreign aid to countries between Texas and Colombia until a wall gets paid for.
The Silicon Valley interests and the Chamber of Commerce constantly keep pressuring Congress to increase limit on H1B visas. The 40% illegals are those who have overstayed their visa is demonstrable evidence that enforcement of even illegals whose identity etc are known and documented goes unenforced!