It depends.
In Pakistan, the father has the custody.
In US, both parents would be considered for custody, however case is stacked against father from get go based on his illegal status in US. However if mother is considered as responsible parent (based on her past), she might not have a problem wining the case.
If the court says the mother can, nationality is not a concern.
If the stepfather has legal paper for custody, then the children under 18 are eligible for Canadian citizenship.
You have an automatic American Citizenship as the father is an American citizen. It doesn't matter whether or not you are born on a military base or if your mother isn't a American citizen.
Yes, you can apply for German citizenship and be a dual citizen regardless of the fact if your mother was still a German citizen or not.
He is both Mexican and American. He has dual citizenship.
Citizenship is not an issue. It sounds like a good case, based on the support and visitation issues, but it would be up to the court.
This question is meaningless, it is missing punctuation. But the answer of the question "Would having only a birth certificate be absolute proof of citizenship, in the US, if your father was not a citizen and your mother did not meet the requirements for citizenship?" would be no. For example, Czech birth certificates have nothing to do with US citizenship.
yes
A child born in The United States of America is automatically a citizen, regardless of the parents' citizenship. I do not know how many children have non-citizen parents.
the father gets the custody of the child if the mother dies
The child would have dual citizenship; Canadian and American.
His mother was a native born US citizen; his father was a citizen of Kenya living in the US on a student visa.
The child is an American citizen if the child was born on American soil. The child should be able to stay in the US with the father. Unless the mother takes the child with her. There could be a custody dispute between the mother and father, it should be what is best for the child.