“but you have no way of knowing whether or not he actually was born as a man”.
He is the biological father of SIX children. Yes, Jenner was born a man and will die a man.
“He is the biological father of SIX children. Yes, Jenner was born a man and will die a man.”
Are you aware of the fact there are whole communities of people where you can have families in which 25 percent of the children are born as females and then proceed to naturally transform into fertile males upon reaching puberty, marry, and father children?