Libertarians tend to believe in open borders that is freedom except there is a problem said Milton Freedman "in principal you ought to have completely open immigration . But with the welfare state it's really not possible to do that..." is that true , with our welfare state are people going to come here just to get free stuff , could immigrants bankrupt us ? there are also fanatics who want to come here to kill us , so where is the line with immigration : Open Borders or not open borders ? David Boaz " when people say this is a country built on legal immigration , Yeah because there was no such a thing as illegal immigration " he explained ...