What would it take?

[CRedskinsRule]

One other point on immigration, from a Telegraph article,

In 2015, the US had 46million legal immigrants (11million illegal - estimated)
The next closest countries were Germany and Russia which had about 12million each.
Canada has 7.8 million.

We have nearly as many undocumented/illegal immigrants as the next closest countries have legal. I can't understand for the life of me, why trying to protect the borders with a physical demarcation is in anyway a bad thing. The closest I get to understanding is the cost argument, but how many people don't pay the cost to put up a fence. Out of all the tasks assigned to our government that they want to pay for, border security seems to me like it fits at the top of the constitutional list of Federal obligations. ( and yes I'd be ok with delaying a few nuclear subs/f-35 fighter jets to help defray the initial cost, and then use tariffs/fees and other methods to recoup the total expenses)