Look again, Jeff.
"Revised Statutes of the United States passed at the First Session of the Forty-Third Congress - 1873-1874 - Embracing the statutes of the United States, general and permanent in their nature, in force on the first day of December, One Thousand Eight Hundred Seventy-Three, as revised and consolidated by commissioners appointed under an Act of Congress."
IN FORCE December 1873. AFTER ratification of the 14th Amendment. Seems EVERYONE at the time KNEW exactly what the "subject to the jurisdiction" requirement meant AND U.S. Secretaries of State ruled accordingly when they denied U.S. birthright citizenship to those born in the U.S. to alien fathers.
OF COURSE the Civil Rights Act of 1866 was in force in 1873 and 1874. DUH! HELLO?!
But the law itself was from 1866.
Now. Are you going to admit that Senator Lyman Trumbull stated clearly, during the course of the debates on this Act, that the children of immigrants were themselves United States citizens, or are you going to continue to deny it?