Again, I like border controls that are enforced in the same way that I like trespass laws that are enforced. There is an important purpose behind such controls and laws. Anyone who would argue, as you do, that the way to eliminate rampant trespassing is to change the laws so that those who trespass are given immunity and allowed to come and go as they please, is in desperate need of an injection of logic and common sense to cool their fever.
And intelligent people with good verbal skills discuss those important purposes, they don't simply say "the law is the law is the law, what don't you understand about illegal."
Most people like President Bush who have delt with the problems and "important purpose behind" the immigration laws for years have concluded that the immigration laws are not working correctly and need to be reformed to reflect reality.
The laws are going to be changed. When they are will you still say "the law is the law" and support the new laws as fully as you support the current ones? You can't have it both ways if you are a strict legalist.