is volunteering irrational
Doesn't that depend on what you're volunteering for? I'd say it's irrational to volunteer to attack a large army singlehandedly, but it's not all that irrational to volunteer do nice but not difficult things for people who will love you for doing them.
what about sexuality is the foundation of man's personhood
I don't know if this is supposed to be a question about how something to do with sexuality distinguishes humans from animals (and thus explains why humans are persons) or if it's supposed to have something to do with men (as opposed to women) being defined by their sexuality, but neither sounds like a very promising sort of inquiry.
classically trained kerry livgren?
No, he is not. He's entirely self-taught.