But please, don't invoke relativism here. It is IMMORAL to keep people IN. It is an INALIENABLE RIGHT to keep people OUT (e.g., out of your house, your bank account, your country.
But Bush/Cheney/Rove/Republicans/Patriots are evil, so this will be the approach the moonbats will take, "It's an immoral wall since it keeps the Mexicans IN Mexico, just like farm animals in a pen."