Sure we do. Have you read the Oath of Allegiance?
The oath of allegiance is:
"I hereby declare, on oath, that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty of whom or which I have heretofore been a subject or citizen; that I will support and defend the Constitution and laws of the United States of America against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I will bear arms on behalf of the United States when required by the law; that I will perform noncombatant service in the Armed Forces of the United States when required by the law; that I will perform work of national importance under civilian direction when required by the law; and that I take this obligation freely without any mental reservation or purpose of evasion; so help me God."
Only applies to naturalized, not born, citizens. So, you and Tubalcane are both correct.
“Sure we do. Have you read the Oath of Allegiance?”
Somehow, I never had to take this oath of yours. How is that possible? Oh yeah, I was born a citizen. Born citizens do not take any oath!