ID in the US
Actually it has less in common with Nazi Germany, who were mainly about persecuting one particular ethnic group, and more like the old Soviet block.
Snatching people for torture and interrogation, no unauthorised travel (remember, the DHS now requires airlines to submit passenger lists for travel authorisation) and indefinite imprisonment in internment camps without the right to know why you've been imprisoned, or the right to see the evidence against you.
As for refusing ID at security check points, well good luck with that. If you are asked for it, then I can 100% guarantee the person asking has no clue they are breaking the law, and will not hesitate to refuse entry if you refuse or to have you detained if you attempt to argue your way through. Certainly the people around you, being Americans, will be equally ignorant, obnoxious and determined to put in their 2 cents. Which means you will be carted off by popular consent.
On the other hand I have been through security check points which on many occasions were manned by people that do know the law. The only document required is a boarding pass. It is not illegal for you to pass by without one, however the airlines themselves are legally allowed to set rules of their own provided they don't break any laws. Requiring their customers to prove they've bought a ticket in order to reach a departure gate and before they're allowed to board a plane breaks no laws and discriminates against no one.
Unfortunately in this country, there is an astonishing and completely irrational fear permeating society that allows government to undo centuries of struggle for civil rights, overnight.
So I have no doubt the first attempt to get a British-style national ID card passed into law will be successful provided they throw in the required buzzwords, terrorism, ID theft and children. No particular order required.couple of factually incorrect commercials to get an ID card through congress.