When is the last time you started a new job?
I had to show my SS Card and my drivers license to verify that I was legal to work in the US. (I was born here and only have lived in the US)
So your argument is that the camel's nose is already under the tent, he looks like a nice bloke, so let's have him in for a spot of tea?
Oh, I already have a biometric ID card, US military. Of course, if I don't like that I can just not re-enlist. Tried to apply for a job recently and that card(with SSN on it) and my driver's license were insufficient to prove that I was who I was, but bring my stupid little Social Security card and that somehow makes it better?
Do things the old tedious way. Notarized birth certificate, states issue their own driver's license, if you can't produce documentation that you were born here, green card, or naturalization then go away. The strong-arm tactic of get this biometric ID card or don't work is something no good will come of.