> Why is that a difficult question to answer? Nearly all adults have Star ID driver licenses that are basically as good as passports for that very purpose.

I have such a driver's license; it did not require me to "prove citizenship."

> Required documentation is consistent and easily acquired.

It's relatively easy for me to prove I was born in the US (birth certificate), but one of my parents was born at home and the other was born at a hospital that no longer exists -- if I can't prove citizenship based on my birth certificate, please tell me how exactly I can prove it?

> You're just angry and emotional.

One of us certainly is.