I have noticed that typically the open borders group lives far away from the border states. These anti-sovereignty people don't see the constant roll-overs, the crowded emergency rooms and highways, the trashed with needles and human waste national forests, the stress of identity theft, and in general the extreme toll to Americans.
Of course, in this post-nationalist era, the value of an American life doesn't mean much anymore. It's all about what "racists" and "xenophobes" we are to ask our employees to enforce the nation's laws.