No.
does a citizen of Mexico need a passport to go from the us to Mexico and back? He is legal to be in us but not a us citizen.
No.
If your parents were US citizens when you were born- you automatically are a US citizen. The US embassy should have given you documents stating your citizenship during the time you were born. This is what my sister did.
Yes, since the mother is a citizen (no matter how she became a citizen), the baby is a citizen regardless of where it was born. However, there are additional rules if the baby does not end up living back in the the US or if the parents/grandparents have not lived in the US for a period of time. Check in with the local embassy.
You just look for your residence. Both the US and Mexico have a treaty allowing bi-nationality.
Your "race" will always be Human. Your nationality depends on where you were registered, not necessarily where you were born. You will be American with a Mexican family.
I am a us citizen since I was born 17 years ago in the us as a us citizen in Oroville, CA.
no
Yes he can.
NO
he is a German born u.s. citizen