I didn't use "irrational" ...you did. But thanks for adding it. And if you disagree with Constitutionalism, it is you who should be ashamed.
And what is Constitutionalism? If you're referring to the half-informed drivel that typically gets pedalled at FR by self-styled Constitutional Experts (usually libertarian), then there's no need to feel ashamed for disagreeing with it or even laughing out loud at it. It's comic book constitutionalism.
On the other hand, a lack of respect for or understanding of the Constitution--the genuine article unadulterated by personal conceits, appetites, and quirks--is something for which any adult American ought to feel ashamed.
No one here opposes Constitutionalism, least of all me. You should quit raising these stupid straw man arguments.
The issue here is how as free people we should go about identifing the potential mass killers within our own borders. I believe the best way to do this is by bringing all Muslims of Arabic descent who are also non-citizens under systematic scrutiny. This approach would not violate the rights of any American.