Are Marines Made or Born?

I am wondering if Marines are made in Bootcamp or if they are destined to be Marines? Figure the DNA or something like  some religious miracle thing where God created us etc?

I heard the idea about us being BORN  from Pedro recently, but then, I had already thought about the possibility before.  Especially when I think of how I was when I was a kid.  Hmm?

Anyway, I will have to post copies of three email messages I got recently just to give you a little insight on how I got to this line of thinking