Such an “apartheid” red card would be slapped down by the SCOTUS in about one year of it being enacted, and all of the red-carders would be granted full citizenship.
A Newt lover from Drumrass
Rose to the head of the Rino class
By reciting quite bright
And sleeping at night
With his tongue up the SPEAKERS A**!
Why would you think that? Congress can determine whatever means it likes for establishing naturalization criteria and, certainly, illegal entry is a legitimate barrier the courts, including SCOTUS, should recognize.
Under Newt's expressed concept, red card holders can only apply for citizenship if they leave the country and apply from back home.