Did you find the part where the LP gets rid of Welfare at the same time?
Imagine that ... no welfare ... nothing to keep them here.
On the other hand, at present, we give them Section 8 housing, food stamps, Obamaphones, tax credits, welfare checks, and everything else to KEEP them here and that's just at the Federal level.
Now let's look a little further. Who appropriates the money for all these welfare programs? Well that would be the Republican controlled House of Representatives.
Might I suggest the problem might be the Republicans who are in power as opposed to the Libertarians who are not?
Dude ... give it up. This is not a partisan argument you can win.
You're supposed to be attracting voters to your cause and your candidate, not telling them to get stuffed and go away. Doing that gets you Hillary in 2016.
When you come off the drugs, then ponder for a minute that you need to eliminate welfare in America first, after you do that, then we will talk about anything that you want to discuss, open borders, Unicorns, kittens living on the moon, supplying every man in america with a humanoid that looks like Tina Fey’s assistant/receptionist on 30 Rock, anything, any fantasy that you choose.
Do the impossible first, then we will discuss supporting your real life, left wing agenda, in regards to immigration.