If Constitutional rights did not apply to non-citizens, then the government could: incarcerate or execute non-citizens without trial or legal representation, bug their hotel rooms and conduct warrantless searches of their possessions or persons at will, throw them in jail if a government agent didn't like something they said, torture them with impunity, etc.
Would this then be a country in which you would care to live? Is this what America stands for?
I think poptime nailed it.
I'm sure you're intending that I take umbrage that that could occur. With all respect to your opinion, I could care less than nothing if they are not citizens. I will bow to the requirements of the 14th Amendment, however, but I am nt going to act like I care a whit.