It will further limit or funnel some bad things, and if it limits illegals moreso then it saves money and pays for itself. But, for a moment, let's say that the wall is benign and won't do a thing. Then still give him his $5 billion because he isn't budging off of that. Because he also said he will be willing to give the 400,000 daca peeps what they want (This is significant btw). It's time that these 400,000 dreamers get what they need. So, give him his wall and get something very important in exchange. Win win. The wall is only $5 billion out of a $4 trillion dollar budget so for Washington to piss away another $5 billion, if that is what it is, is meaningless. Without compromise, he isn't budging. He is like Reagan. More workers are going to suffer, DACA are HOSED and, in the end, Pelosi will have to give him the damn wall. All of us already know this. Get something solid in return. Otherwise, the government will be shut down until the cows come home and the democrats will end up being the REALLY bad guys. Trump is smart with politics. Damn smart.