Senator Cruz is surely better than others. But even he will allow most illegals to stay in the country. Once the illegals become legal residents, any future president and congress can award them path to citizenship. I want them all gone back to their country of origin and wait in line behind those applying for green cards legally. Anything else is a form of amnesty.
If all illegals were sent back, future illegal immigration will be discouraged. By giving them path to legal residency, will encourage more illegals to arrive.
Keep in mind a 100 foot tall electrified fence from end to end on the southern border will not stop people coming on tourist and student visa’s and never leaving. That is almost half of the illegal community.
What you envision is politically and culturally undoable in 2015 by any candidate that you or I can imagine.