I think this is an interesting hypothesis considering that many non-heterosexual sexual orientations have only been given concrete labels in the past ~100-150 y

I think this is an interesting hypothesis considering that many non-heterosexual sexual orientations have only been given concrete labels in the past ~100-150 years, and non-cis gender identities in the last ~50-100 years despite them all existing in some form throughout history. >Even someone who was committed to a same-sex romantic relationship wouldn't have, or want, the terminology to describe and identify themselves in those terms. I think where I would differ in your reasoning this isn't just that people don't identify or want to be labeled as something, it's they don't want to be caught in the negative stigmas and social outcastings around these identities that have sprung up in the last ~100-150 years