Comment: Although I am an anarchist,

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In reply to comment: Speaking of muddled thinking... (see in situ)

Although I am an anarchist,

you can be a libertarian minarchist and still be consistent on this issue. Some of the best arguments for open borders and free trade have come from Jacob Hornberger, a libertarian minarchist who is president of the Future of Freedom Foundation. I highly recommend the following:

http://fff.org/explore-freedom/article/closed-minds-open-bor...

http://fff.org/explore-freedom/article/closed-minds-open-bor...

As far as "rules" go, in a free society, rules are established by contract. This method applies to everyone, not simply Native Born American Citizens. Brown skinned Mexicans have the same natural rights as Americans of any race. If you don't agree, you might consider a liberal or neoconservative blog instead of an explicitly libertarian one.