The "legality" of immigration is the LEAST important part of it.
The most important factors are the source population and the quantity.
Bringing in hundreds of thousands of Pakistanis, Egyptians, Somalis and other Muslims each year on completely legal family-reunification visas is a terrible practice, even though these Jihad carriers are going through all the "right" steps and arrive with all their papers in order. Their admission, though totally legal, guarantees the growth of terrorism and other Islamic maladies in our homeland. Similarly, the import of large numbers of Mexicans, Salvadorans, Guatemalans, and Hondurans wreaks havoc on our schools, communities and the Electoral College, whether or not they have a shiny Green Card in their wallet.
On the other hand, the prospect of a million Polish or Irish folks jumping their tourist visas and staying on as illegal aliens bothers me little. They, or at least their kids, will, for the most part, eventually become part of the fabric of American exceptionalism, not grievance-harboring antagonists to it.
Right now, LEGAL immigration isn't as important as ILLEGAL immigration for voters.
But you keep on focusing on inappropriate stuff.
I'll keep sending time and money to Cruz.
/johnny