Given that language, how has it come about that we let these babies be citizens?
Power grab by the general government. After grinding through the public education system, most people won't even entertain the thought that the federal government has any sort of restraints, much less look at the evidence that clearly shows the differentiation between a Citizen of a State and a citizen of the United States.
§ 1218. The inhabitants enjoy all their civil, religious, and political rights. They live substantially under the same laws, as at the time of the cession, such changes only having been made, as have been devised, and sought by themselves. They are not indeed citizens of any state, entitled to the privileges of such; but they are citizens of the United States. They have no immediate representatives in congress.
Joseph Story, Commentaries on the Constitution
Given that language, how has it come about that we let these babies be citizens?
Ummm..., the Supreme Court ... :-)