Another libertarian too stupid to understand that immigrants, legal and illegal, tend to be poor, on government welfare, and most have no ties to our founding principles and traditions. They are natural socialists. And so, too many libertarians are libertarians for socialism.
Even Milton Friedman recognized that you can either have a welfare state or open borders while maintaining a civil society, but you can't have both. The Libertarian ideal is no welfare state and open borders, which, while bad enough, wouldn't be the disaster that we have today. However, Libertarians know that they won't eliminate the welfare state any time soon because no Democrats and few Republicans want to do this. So what do they do? They campaign on the open borders issue instead, knowing that on THAT count they'll have full Democrat and majority Republican cooperation, completely forgetting their own hero Friedman's advice on the subject.
Putting the cart before the horse is always stupid, in this case it's suicidal.