Next, I think Biden"s death or his inability to hold office takes place. Kamala is forced to step up.

Then, it will be said, Kamala is not eligible to hold office of the presidency. An emergent ruling by the Supreme Court will be released defining the definition of "natural born citizen". This ruling is sitting on Clarence Thomas's desk as we speak. (Just a wild guess) This has been written in to the movie from the start. Preventing another manchurian president like Obama from gaining power in the future is an important part in this movie.

Trump was one of the original birthers questioning Obama"s eligibility as president. You can bet your last dollar Trump wanted this eligibilty fight with Kamala to take place. This is why she was chosen as sleepy Joe's VP.

It will be said, Kamala is a anchor baby, both of her parents were here on foreign student visas. Also, Kamala's father was working for the government of Jamacia as a policy consultant / advisor which may define him as a diplomat.

If you look here at the Jamacia Constitution under Chapter 2 CITIZENSHIP:

2. A person shall be deemed to be born in Jamaica

b. If at the time of his birth his mother

ii. whether or not a citizen of Jamaica, is residing in a country other than Jamaica by reason of her being married to a citizen of Jamaica who is residing in that country by reason of his employment in the diplomatic service of Jamaica.

https://www.constituteproject.org/constitution/Jamaica_2011

Would this make Kamal a citizen of Jamacia?

I think it does.