His statement as quoted in the linked interview sort of...loops back upon itself to end up seemingly contradictory. His intent seems to be that people are inclined a certain way but shouldn't be closed off to trying other things, even if in the process of trying, they discover it's not for them.
It's almost saying, "You feel like you won't like onion soup, but you try it. You have it a few times and decide, yeah, I don't like onion soup. So I'll stop eating it."
I think this is true of many people - straight men who get drunk and experiment in college. Gay guys who try it with a girl. It's more intense in the gay-guy-married-woman-leads-secret-life-changes-mind-leaves-wife paradigm, but a related concept.