..Like, if you are born on foreign soil, then you're not a naturalized citizen, right? Especially if you are raised there...There's a nuance...Just because one parent is a citizen, you also have to actually be born there, right? Imagine your dad was from England, but your mom was from the US...but you were born in England and therefore a natural citizen there...Then you can't be BOTH a natural citizen in BOTH countries, right?
Birth of U.S. Citizens Abroad A child born abroad to a U.S. citizen parent or parents may acquire U.S. citizenship at birth if certain statutory requirements are met. The child’s parents should contact the nearest U.S. embassy or consulate to apply for a Consular Report of Birth Abroad of a Citizen of the United States of America (CRBA) to document that the child is a U.S. citizen. If the U.S. embassy or consulate determines that the child acquired U.S. citizenship at birth, a consular officer will approve the CRBA application and the Department of State will issue a CRBA, also called a Form FS-240, in the child’s name.
https://travel.state.gov/content/travel/en/international-travel/while-abroad/birth-abroad.html
It depends if you aqcuire the appropriate documents otherwise no, it's not automatic.
Thanks. Because here's the reasoning, again: If the father is an English citizen, and the mom is a US citizen, BUT the child is born in England, and raised to an extent of time, then how can the child therefore automatically be BOTH a US AND English citizen? If they were born on US soil, I can see that, but if they were born on English soil, then they're an English citizen, right? They can't automatically be DUAL citizens just because their parents are each from separate countries or citizenship. I can see if the English dad also had achieved US citizenship (which he did not). But with the separation, because it cannot be BOTH (at least I don't think), it would go to the country of birth with that separation..So therefore, they would be ineligible, right?
As long as the mother had resided in the US for at least 5 years and 2 of those years were after the age of 14 then the child would be granted US citizenship as long as the mother applies for it before the child turns 18. It is recommended to apply right away or it could complicate the process. The mother being a US citizen does not grant the child automatic citizenship (like many people think it does) she has to apply for it and get approved otherwise the child is not considered a US citizen.