I have been wondering how culturally conservative societies would use future medical interventions that could shape people’s sexuality. Not necessarily the government requiring expecting mothers to subject the unborn child to some sort of “cure” for gayness. But parents doing this voluntarily and on their own. Even western couples might then be tempted to travel to countries permitting these treatments.

At the same time, it seems unlikely in the near future. It so happens that western societies will not fund this kind of research. And that culturally conservative countries do not have the scientific prowess to conduct research in this regard. Also, their scientists are busy developing nuclear bombs.

it wouldn't, if the implication of you wondering is supposed to be if someone will find and treat a "gay gene". Homosexuality is (like almost all complex traits[1]) influenced by thousands of genes in addition to environmental, social, cultural factors etc.

[1] https://www.quantamagazine.org/omnigenic-model-suggests-that...