It is purely at the emotional level that they discard even former lovers if that former lover says 'No'. They treat former homosexuals as political traitors. It is all about politics, not science nor proofs. Homosexuality is natural. As far as the Natural hypothesis, we challenge that easily enough in that everything that comes 'naturally' is also bounded by laws, social mores, and an inner sense of self-driven decision.
Plutonium radiation is a natural phenomenon.
Yet laws and social behavior is modified in the presence of mere dust particles of plutonium. In natural human behaviors, nobody and nothing forces a person to sexually act out upon another in a homosexual manner. To say homosexuals 'have no choice' runs completely counter to their other arguments of 'freedom of choice', 'openess' and 'loving relationships'. These terms that they use are fraught with active choice. The Condition of Learned Behaviors The 'natural' sensory pleasure received is the result of a choice.