In order of likelihood in my opinion:
- Behavioral sink
- Population control adaptation in response to resource scarcity or other stressors
- Xenoestrogens, phytoestrogens, androgens as birth control, and environmental pollutants like Atrazine
- Child rape trauma cycle
- Porn addiction induced hypersexuality
- Literal gayops
- Parasites, a la toxoplasmosis
- Vaccines
- Satan
- Chemtrails
- 5G
- HAARP
- CERN
- Reptilians
- Pleiadians
- Clockwork elves
- They were always gay, they were just afraid to come out, homosexuality is normal, homosexuality is natural, homosexuality is healthy, Abraham Lincoln was gay and also black