I think you overestimate the vulnerability of people sitting in a locked toilet cubicle.
I would hate to lose variety and complexity.
Having limited options means I'm more prone to be a victim of fate rather than a creature of action capable of making choices.
The idea that there would only be one flavour of desire with only one outcome (procreation) turns the human race into little less than a plague.
Only diversity adds poetry and surprises.
My homosexuality isn't the whole of me but it is a large part of me which I have had to adjust to as have the people around me.
Me without it would not be me regardless of what I do with it in terms of sticking my genitals into things.
Children hate clowns. Clowns are ambiguity personified. The gender and age cues are mixed up they have false faces, the body signature is confused, they have squeaky feet.
Over time you come to realise that clowns aren't scary, they are EVIL!!!!