Weird thing thought here- I do believe Obama issued some type or a number of executive orders on immigration policies.
You have read well but what you fail to grasp is a act of omission not “commission” by any & all legal enforcement agencies within the USA where the president has or thru his proxies instructed Border Patrol to stand down and let any & all immigrants in for processing.
When a country cannot control it’s own borders it is not a country -it therefore becomes a piece of lawless land.
But I did miss the essential theme presented by Vieira, thay a country without firm borders is not a country.
For the individual human it is only when one says "NO" that the boundary defining one as a person comes into view. I see your point, that Obama (and his predecessors) have set us up as a wasteland with porous borders enticing criminals of all kind to come and take the physical and spiritual riches that our forefathers have banked up as a heritage for their progeny, and instead are giving it--nay, throwing it--away.
Obama and his crew have cleared the decks for the battle which now must be fought to keep the last remains of that which has been accumulated by self-sacrifice.
Thanks for making a point of this perspective.