Now that the "gay gene" theory is toast, should s abandon claims of ual predestination?

No Bruce it is not learned behaviour. Can you say the same about heterouality? Do you prefer women just because your father did? Everyone is an individual as is their uality. No one chooses to be one way or the other just them same as they don't choose their skin colour, height etc. Even if scientists could find indisputable evidence it would not be accepted by the s of this world.